diff --git a/frontend/src/lib/analytics.js b/frontend/src/lib/analytics.js
index bff4f44..81f724c 100644
--- a/frontend/src/lib/analytics.js
+++ b/frontend/src/lib/analytics.js
@@ -4,7 +4,7 @@
 const VISITOR_KEY = 'goodnews:visitor';
 const VISITDAY_KEY = 'goodnews:visitday';
 
-function visitorId() {
+export function visitorId() {
   try {
     let v = localStorage.getItem(VISITOR_KEY);
     if (!v) {
diff --git a/frontend/src/lib/components/ArticleCard.svelte b/frontend/src/lib/components/ArticleCard.svelte
index 9f1f528..492e66e 100644
--- a/frontend/src/lib/components/ArticleCard.svelte
+++ b/frontend/src/lib/components/ArticleCard.svelte
@@ -5,8 +5,8 @@
   let { article, onaction, onreplace, ontag, onimageerror, onview, hero = false } = $props();
 
   function opened() {
+    // Records history; the /a page itself fires the summary_viewed event on load.
     onview?.(article);
-    track('open', article.id);
   }
   let isSaved = $derived(savedIds.has(article.id));
 
@@ -47,7 +47,8 @@
   let summaryHref = $derived('/a/' + article.id);
   function openedSource() {
     onview?.(article);
-    track('open', article.id);
+    track('full_story', article.id);
+    if (article.paywalled) track('paywalled_source_open', article.id);
   }
 
   function act(kind, value) {
diff --git a/frontend/src/lib/components/FeedbackModal.svelte b/frontend/src/lib/components/FeedbackModal.svelte
new file mode 100644
index 0000000..784da61
--- /dev/null
+++ b/frontend/src/lib/components/FeedbackModal.svelte
@@ -0,0 +1,103 @@
+<script>
+  import { postJSON } from '$lib/api.js';
+  import { visitorId } from '$lib/analytics.js';
+
+  let { onclose } = $props();
+  let category = $state('idea');
+  let message = $state('');
+  let email = $state('');
+  let hp = $state(''); // honeypot — must stay empty
+  let status = $state('idle'); // idle | sending | sent | error
+  let error = $state('');
+
+  const CATEGORIES = [
+    ['idea', 'Idea'],
+    ['concern', 'Concern'],
+    ['bug', 'Bug'],
+    ['praise', 'Praise'],
+  ];
+
+  async function submit(e) {
+    e.preventDefault();
+    if (!message.trim() || status === 'sending') return;
+    status = 'sending';
+    error = '';
+    try {
+      await postJSON('/api/feedback', { category, message, email, hp, visitor: visitorId() });
+      status = 'sent';
+    } catch (err) {
+      status = 'error';
+      error = err?.message || 'Something went wrong — try again.';
+    }
+  }
+
+  function onkey(e) {
+    if (e.key === 'Escape') onclose?.();
+  }
+</script>
+
+<svelte:window onkeydown={onkey} />
+
+<div class="overlay" onclick={onclose} role="presentation">
+  <div class="sheet rise" role="dialog" aria-modal="true" aria-label="Send feedback" onclick={(e) => e.stopPropagation()}>
+    <button class="x" onclick={onclose} aria-label="Close">×</button>
+
+    {#if status === 'sent'}
+      <h2>Thank you 💛</h2>
+      <p class="sub">Your note is on its way to us. We read every one.</p>
+      <button class="primary" onclick={onclose}>Done</button>
+    {:else}
+      <h2>Share feedback</h2>
+      <p class="sub">An idea, a concern, a bug, or just a hello — we'd love to hear it.</p>
+      <form onsubmit={submit}>
+        <div class="cats">
+          {#each CATEGORIES as [val, label] (val)}
+            <button type="button" class="cat" class:on={category === val} onclick={() => (category = val)}>{label}</button>
+          {/each}
+        </div>
+        <textarea bind:value={message} rows="4" placeholder="What's on your mind?" required></textarea>
+        <input type="email" bind:value={email} placeholder="Email (optional, only if you'd like a reply)" autocomplete="email" />
+        <!-- honeypot: hidden from people, tempting to bots -->
+        <input class="hp" tabindex="-1" autocomplete="off" bind:value={hp} aria-hidden="true" />
+        <button class="primary" type="submit" disabled={status === 'sending'}>
+          {status === 'sending' ? 'Sending…' : 'Send feedback'}
+        </button>
+      </form>
+      {#if status === 'error'}<p class="err">{error}</p>{/if}
+    {/if}
+  </div>
+</div>
+
+<style>
+  .overlay {
+    position: fixed; inset: 0; background: rgba(10, 22, 38, 0.32);
+    display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 60;
+  }
+  .sheet {
+    background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
+    box-shadow: var(--shadow); width: 100%; max-width: 420px; padding: 26px 24px 22px; position: relative;
+  }
+  .x { position: absolute; top: 12px; right: 14px; background: none; border: none; font-size: 1.5rem; line-height: 1; color: var(--muted); cursor: pointer; }
+  h2 { font-size: 1.4rem; margin: 0 0 6px; }
+  .sub { margin: 0 0 16px; color: var(--muted); font-size: 0.92rem; }
+  form { display: flex; flex-direction: column; gap: 10px; }
+  .cats { display: flex; flex-wrap: wrap; gap: 6px; }
+  .cat {
+    border: 1px solid var(--line); background: var(--bg); color: var(--ink);
+    border-radius: 999px; padding: 5px 13px; font-size: 0.85rem; cursor: pointer;
+  }
+  .cat.on { background: var(--accent); border-color: var(--accent); color: #fff; }
+  textarea, input {
+    font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px;
+    background: var(--bg); color: var(--ink); resize: vertical;
+  }
+  textarea:focus, input:focus { outline: none; border-color: var(--accent); }
+  .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
+  .primary {
+    font: inherit; font-weight: 600; background: var(--accent); color: #fff; border: none;
+    border-radius: 999px; padding: 11px 16px; cursor: pointer;
+  }
+  .primary:hover { background: var(--accent-deep); }
+  .primary:disabled { opacity: 0.6; cursor: default; }
+  .err { margin: 10px 0 0; color: #9a3b3b; font-size: 0.86rem; }
+</style>
diff --git a/frontend/src/lib/components/Header.svelte b/frontend/src/lib/components/Header.svelte
index 0430256..2af6030 100644
--- a/frontend/src/lib/components/Header.svelte
+++ b/frontend/src/lib/components/Header.svelte
@@ -1,5 +1,6 @@
 <script>
   import Avatar from './Avatar.svelte';
+  import { openFeedback } from '$lib/feedback.svelte.js';
   let { onSaved, onaccount, user = null, boundariesActive = false } = $props();
 </script>
 
@@ -11,24 +12,29 @@
 
     <nav class="utils" aria-label="Your controls">
       {#if user}
-        <button class="util" onclick={onSaved} title="Saved articles">
+        <button class="util desk" onclick={onSaved} title="Saved articles">
           <svg viewBox="0 0 24 24" aria-hidden="true"><path d="M6 3h12v18l-6-4-6 4z"
             fill="none" stroke="currentColor" stroke-width="1.8" stroke-linejoin="round" /></svg>
           <span>Saved</span>
         </button>
       {/if}
-      <a class="util shield" class:on={boundariesActive} href="/account?section=boundaries"
+      <a class="util shield desk" class:on={boundariesActive} href="/account?section=boundaries"
          title={boundariesActive ? 'Boundaries are on' : 'Your boundaries'}>
         <svg viewBox="0 0 24 24" aria-hidden="true"><path d="M12 3l7 3v5c0 4.4-3 7.6-7 9-4-1.4-7-4.6-7-9V6l7-3z"
           fill={boundariesActive ? 'currentColor' : 'none'} stroke="currentColor" stroke-width="1.8"
           stroke-linejoin="round" /></svg>
       </a>
+      <!-- Feedback bubble: the one control kept on the mobile bar too. -->
+      <button class="util" onclick={openFeedback} title="Share feedback" aria-label="Share feedback">
+        <svg viewBox="0 0 24 24" aria-hidden="true"><path d="M4 5h16v11H8l-4 3z"
+          fill="none" stroke="currentColor" stroke-width="1.8" stroke-linejoin="round" /></svg>
+      </button>
       {#if user}
-        <button class="acct" onclick={onaccount} title={user.email} aria-label="Your account">
+        <button class="acct desk" onclick={onaccount} title={user.email} aria-label="Your account">
           <Avatar {user} size={30} />
         </button>
       {:else}
-        <button class="signin" onclick={onaccount}>Sign in</button>
+        <button class="signin desk" onclick={onaccount}>Sign in</button>
       {/if}
     </nav>
   </div>
@@ -64,10 +70,11 @@
   }
   .signin:hover { background: var(--accent-soft); }
 
-  /* On phones the bottom tab bar handles navigation; keep the bar to the logo. */
+  /* On phones the bottom tab bar handles navigation; the top bar keeps just the
+     logo (left) and the feedback bubble (right). Other utils move to bottom nav. */
   @media (max-width: 720px) {
-    .bar { height: 66px; justify-content: center; }
-    .utils { display: none; }
+    .bar { height: 66px; }
+    .utils .desk { display: none; }
     .logo { height: 46px; }
   }
 </style>
diff --git a/frontend/src/lib/feedback.svelte.js b/frontend/src/lib/feedback.svelte.js
new file mode 100644
index 0000000..2af8be1
--- /dev/null
+++ b/frontend/src/lib/feedback.svelte.js
@@ -0,0 +1,9 @@
+// App-wide feedback modal state, openable from any route (header, footer, account).
+export const fb = $state({ open: false });
+
+export function openFeedback() {
+  fb.open = true;
+}
+export function closeFeedback() {
+  fb.open = false;
+}
diff --git a/frontend/src/lib/history.svelte.js b/frontend/src/lib/history.svelte.js
index 55a2677..e299b1f 100644
--- a/frontend/src/lib/history.svelte.js
+++ b/frontend/src/lib/history.svelte.js
@@ -3,7 +3,7 @@
 // the account when signed in. Only deliberate events live here — opened or
 // replaced-away articles — never everything merely shown.
 import { auth } from './auth.svelte.js';
-import { getJSON, postJSON, delJSON } from './api.js';
+import { getJSON, delJSON } from './api.js';
 
 const KEY = 'goodnews:history';
 const CAP = 200;
@@ -46,7 +46,15 @@ export function record(article) {
     if (!history.server.some((h) => h.id === article.id)) {
       history.server = [article, ...history.server];
     }
-    postJSON('/api/history', { ids: [article.id] }).catch(() => {});
+    // keepalive: this often fires on a click that navigates to /a, so it must
+    // survive the page transition.
+    fetch('/api/history', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ ids: [article.id] }),
+      credentials: 'same-origin',
+      keepalive: true,
+    }).catch(() => {});
   }
 }
 
diff --git a/frontend/src/routes/+layout.svelte b/frontend/src/routes/+layout.svelte
index dd3fc69..abd592a 100644
--- a/frontend/src/routes/+layout.svelte
+++ b/frontend/src/routes/+layout.svelte
@@ -1,12 +1,18 @@
 <script>
   import '../app.css';
+  import FeedbackModal from '$lib/components/FeedbackModal.svelte';
+  import { fb, openFeedback, closeFeedback } from '$lib/feedback.svelte.js';
   let { children } = $props();
 </script>
 
 {@render children()}
 
+{#if fb.open}<FeedbackModal onclose={closeFeedback} />{/if}
+
 <footer class="site">
   <div class="container">
+    <button class="fb" onclick={openFeedback}>Send feedback</button>
+    <span class="dot">·</span>
     Upbeat Bytes · metadata &amp; links only, no stored articles · <a href="/docs">API</a>
   </div>
 </footer>
@@ -20,6 +26,8 @@
     border-top: 1px solid var(--line);
   }
   footer.site a { color: var(--accent-deep); }
+  footer.site .fb { background: none; border: none; color: var(--accent-deep); font: inherit; font-size: 0.82rem; cursor: pointer; text-decoration: underline; padding: 0; }
+  footer.site .dot { margin: 0 4px; }
   /* room for the mobile bottom tab bar */
   @media (max-width: 720px) {
     footer.site { padding-bottom: calc(34px + 64px + env(safe-area-inset-bottom)); }
diff --git a/frontend/src/routes/+page.svelte b/frontend/src/routes/+page.svelte
index 39f08dc..55339f3 100644
--- a/frontend/src/routes/+page.svelte
+++ b/frontend/src/routes/+page.svelte
@@ -12,7 +12,7 @@
   import { auth, refresh as refreshAuth } from '$lib/auth.svelte.js';
   import { prefs, initPrefs, active as prefsActive, applyPrefAction, syncPrefsOnLogin } from '$lib/prefs.svelte.js';
   import { initHistory, deviceIds, record, loadServerHistory } from '$lib/history.svelte.js';
-  import { trackVisit } from '$lib/analytics.js';
+  import { trackVisit, track } from '$lib/analytics.js';
 
   let moods = $state([]);
   let topics = $state([]);
@@ -156,8 +156,10 @@
     if (typeof window !== 'undefined') window.scrollTo({ top: 0, behavior: 'smooth' });
   }
 
+  const MIX_EVENT = { notToday: 'not_today', lessLikeThis: 'less_like_this', alwaysHide: 'hide_topic' };
   function applyAction(kind, value) {
     applyPrefAction(kind, value); // updates + persists + syncs to account
+    if (MIX_EVENT[kind]) track(MIX_EVENT[kind]); // emotional-mix signal (no value stored)
     select(selected, true); // re-filter the feed
   }
 
@@ -182,8 +184,11 @@
     }
     if (!repl) {
       flash("That's everything fresh for now — nothing new to swap in.");
+      track('replace_none');
       return;
     }
+    track('replace_used', article.id);
+    if (article.paywalled) track('paywall_replace', article.id);
     dismissed.add(article.id);
     seenIds.add(article.id);
     markDisplayed([repl]);
diff --git a/frontend/src/routes/account/+page.svelte b/frontend/src/routes/account/+page.svelte
index dd2c4fe..54da7ee 100644
--- a/frontend/src/routes/account/+page.svelte
+++ b/frontend/src/routes/account/+page.svelte
@@ -4,8 +4,9 @@
   import { getJSON } from '$lib/api.js';
   import { auth, savedIds, refresh } from '$lib/auth.svelte.js';
   import { prefs, initPrefs, persistPrefs } from '$lib/prefs.svelte.js';
-  import { history, initHistory, loadServerHistory, removeOne, clearAll } from '$lib/history.svelte.js';
+  import { history, initHistory, loadServerHistory, removeOne, clearAll, record } from '$lib/history.svelte.js';
   import { track } from '$lib/analytics.js';
+  import { openFeedback } from '$lib/feedback.svelte.js';
   import AccountPanel from '$lib/components/AccountPanel.svelte';
   import BoundariesPanel from '$lib/components/BoundariesPanel.svelte';
   import ArticleCard from '$lib/components/ArticleCard.svelte';
@@ -43,7 +44,12 @@
 <header class="bar">
   <div class="container inner">
     <a class="brand" href="/" aria-label="Upbeat Bytes — home"><img class="logo" src="/logo.svg" alt="Upbeat Bytes" /></a>
-    <a class="back" href="/">← Back to news</a>
+    <div class="baractions">
+      <button class="fb" onclick={openFeedback} aria-label="Share feedback" title="Share feedback">
+        <svg viewBox="0 0 24 24" width="18" height="18" aria-hidden="true"><path d="M4 5h16v11H8l-4 3z" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linejoin="round" /></svg>
+      </button>
+      <a class="back" href="/">← Back</a>
+    </div>
   </div>
 </header>
 
@@ -73,7 +79,7 @@
           <ul class="hist">
             {#each historyItems as a (a.id)}
               <li>
-                <a href={a.url} target="_blank" rel="noopener" onclick={() => track('open', a.id)}>{a.title}</a>
+                <a href={a.url} target="_blank" rel="noopener" onclick={() => track('full_story', a.id)}>{a.title}</a>
                 <span class="hsrc">{a.source}</span>
                 <button class="hx" aria-label="Remove" onclick={() => removeOne(a.id)}>×</button>
               </li>
@@ -90,7 +96,7 @@
       {:else if savedShown.length}
         <div class="grid">
           {#each savedShown as a (a.id)}
-            <ArticleCard article={a} onview={(x) => track('open', x.id)} />
+            <ArticleCard article={a} onview={record} />
           {/each}
         </div>
       {:else if savedReady}
@@ -115,6 +121,8 @@
   .inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
   .logo { height: 40px; display: block; }
   .back { color: var(--accent-deep); font-size: 0.9rem; }
+  .baractions { display: flex; align-items: center; gap: 14px; }
+  .baractions .fb { background: none; border: none; color: var(--accent-deep); cursor: pointer; display: inline-flex; padding: 2px; }
   .page { padding: 20px 20px 70px; }
   h1 { font-size: clamp(2rem, 5vw, 2.6rem); margin: 6px 0 16px; }
 
diff --git a/frontend/src/routes/admin/+page.svelte b/frontend/src/routes/admin/+page.svelte
index 8cff0bd..ab6f393 100644
--- a/frontend/src/routes/admin/+page.svelte
+++ b/frontend/src/routes/admin/+page.svelte
@@ -5,6 +5,7 @@
   import { auth, refresh } from '$lib/auth.svelte.js';
 
   let stats = $state(null);
+  let feedback = $state([]);
   let error = $state('');
 
   onMount(async () => {
@@ -15,11 +16,17 @@
     }
     try {
       stats = await getJSON('/api/admin/stats');
+      feedback = await getJSON('/api/admin/feedback');
     } catch {
       error = "Couldn't load stats.";
     }
   });
 
+  function fdate(s) {
+    try { return new Date(s + 'Z').toLocaleDateString(undefined, { month: 'short', day: 'numeric' }); }
+    catch { return s; }
+  }
+
   const SHARE_LABEL = {
     share_ub: 'Copied UB link',
     native_share: 'Native share',
@@ -53,10 +60,51 @@
       <div class="stat"><span class="n">{stats.visitors.today}</span><span class="l">Visitors today</span></div>
       <div class="stat"><span class="n">{stats.visitors.d7}</span><span class="l">Last 7 days</span></div>
       <div class="stat"><span class="n">{stats.visitors.d30}</span><span class="l">Last 30 days</span></div>
-      <div class="stat"><span class="n">{stats.returning}</span><span class="l">Returning</span></div>
-      <div class="stat"><span class="n">{stats.once}</span><span class="l">One-and-done</span></div>
     </div>
 
+    <section>
+      <h2>Accounts</h2>
+      <div class="cards">
+        <div class="stat"><span class="n">{stats.accounts.total}</span><span class="l">Total</span></div>
+        <div class="stat"><span class="n">{stats.accounts.new_today}</span><span class="l">New today</span></div>
+        <div class="stat"><span class="n">{stats.accounts.new_7d}</span><span class="l">New this week</span></div>
+        <div class="stat"><span class="n">{stats.accounts.active_7d}</span><span class="l">Active this week</span></div>
+      </div>
+    </section>
+
+    <section>
+      <h2>Returning visitors (30d)</h2>
+      <div class="cards">
+        <div class="stat"><span class="n">{stats.retention.new}</span><span class="l">New (1 day)</span></div>
+        <div class="stat"><span class="n">{stats.retention['2-3']}</span><span class="l">2–3 days</span></div>
+        <div class="stat"><span class="n">{stats.retention['4-7']}</span><span class="l">4–7 days</span></div>
+        <div class="stat"><span class="n">{stats.retention['8+']}</span><span class="l">8+ days</span></div>
+      </div>
+    </section>
+
+    <section>
+      <h2>Reading funnel</h2>
+      <div class="cards">
+        <div class="stat"><span class="n">{stats.funnel.summary_viewed}</span><span class="l">Summaries read</span></div>
+        <div class="stat"><span class="n">{stats.funnel.source_click}</span><span class="l">→ Source (from summary)</span></div>
+        <div class="stat"><span class="n">{stats.funnel.source_rate}%</span><span class="l">Summary → source rate</span></div>
+        <div class="stat"><span class="n">{stats.funnel.full_story}</span><span class="l">Straight to source</span></div>
+      </div>
+    </section>
+
+    <section>
+      <h2>Emotional mix &amp; friction</h2>
+      <div class="cards">
+        <div class="stat"><span class="n">{stats.emotional_mix.not_today}</span><span class="l">Not today</span></div>
+        <div class="stat"><span class="n">{stats.emotional_mix.less_like_this}</span><span class="l">Less like this</span></div>
+        <div class="stat"><span class="n">{stats.emotional_mix.hide_topic}</span><span class="l">Hide topic</span></div>
+        <div class="stat"><span class="n">{stats.replace.used}</span><span class="l">Replaces</span></div>
+        <div class="stat"><span class="n">{stats.replace.none}</span><span class="l">No replacement</span></div>
+        <div class="stat"><span class="n">{stats.paywall.paywall_replace}</span><span class="l">Paywall replaces</span></div>
+        <div class="stat"><span class="n">{stats.paywall.paywalled_source_open}</span><span class="l">Paywalled opens</span></div>
+      </div>
+    </section>
+
     <section>
       <h2>Most-opened articles</h2>
       {#if stats.top_articles.length}
@@ -128,6 +176,24 @@
         <p class="legend"><span class="sw visits"></span> visits &nbsp; <span class="sw opens"></span> opens</p>
       {:else}<p class="muted">No data yet.</p>{/if}
     </section>
+
+    <section>
+      <h2>Feedback {#if feedback.length}<span class="count">({feedback.length})</span>{/if}</h2>
+      {#if feedback.length}
+        <ul class="fb">
+          {#each feedback as f (f.id)}
+            <li>
+              <div class="fhead">
+                <span class="cat">{f.category}</span>
+                <span class="when">{fdate(f.created_at)}</span>
+                {#if f.contact_email}<a class="reply" href={'mailto:' + f.contact_email}>{f.contact_email}</a>{/if}
+              </div>
+              <p class="msg">{f.message}</p>
+            </li>
+          {/each}
+        </ul>
+      {:else}<p class="muted">No feedback yet.</p>{/if}
+    </section>
   {/if}
 </main>
 
@@ -176,4 +242,13 @@
   .legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; vertical-align: middle; }
   .legend .sw.visits { background: var(--accent-soft); }
   .legend .sw.opens { background: var(--accent); }
+
+  .count { color: var(--muted); font-weight: 400; font-size: 0.9rem; }
+  ul.fb { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
+  ul.fb li { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
+  .fhead { display: flex; align-items: center; gap: 10px; margin-bottom: 5px; font-size: 0.78rem; }
+  .fhead .cat { background: var(--accent-soft); color: var(--accent-deep); border-radius: 999px; padding: 2px 9px; text-transform: capitalize; }
+  .fhead .when { color: var(--muted); }
+  .fhead .reply { color: var(--accent-deep); margin-left: auto; }
+  .msg { margin: 0; color: var(--ink); font-size: 0.92rem; white-space: pre-wrap; }
 </style>
diff --git a/goodnews/api.py b/goodnews/api.py
index b3532ec..9b62e76 100644
--- a/goodnews/api.py
+++ b/goodnews/api.py
@@ -149,6 +149,13 @@ def _kick_summary(article_id: int, background_tasks: BackgroundTasks) -> None:
     background_tasks.add_task(_run_summary, article_id)
 
 
+def _feedback_email_safe(addr: str, category: str, message: str, contact: str | None, who: str) -> None:
+    try:
+        email_send.send_feedback(addr, category, message, contact, who)
+    except Exception:
+        pass
+
+
 def _send_link_safe(email: str, link: str) -> None:
     """Send the magic link, swallowing failures (runs off the request path)."""
     try:
@@ -359,8 +366,23 @@ class EventBody(BaseModel):
     visitor: str | None = None
 
 
-# The only event kinds we record (per the agreed vocabulary).
-_EVENT_KINDS = {"visit", "open", "share_ub", "copy_source", "native_share", "source_click"}
+class FeedbackBody(BaseModel):
+    category: str = "other"
+    message: str = ""
+    email: str | None = None
+    visitor: str | None = None
+    hp: str | None = None  # honeypot — bots fill it, humans don't
+
+
+_FEEDBACK_CATEGORIES = {"idea", "concern", "bug", "praise", "other"}
+
+# The only event kinds we record. All aggregate, non-personal.
+_EVENT_KINDS = {
+    "visit", "open", "summary_viewed", "full_story", "source_click",
+    "share_ub", "copy_source", "native_share",
+    "not_today", "less_like_this", "hide_topic",
+    "replace_used", "replace_none", "paywall_replace", "paywalled_source_open",
+}
 
 
 def _visitor_hash(token: str | None) -> str:
@@ -723,6 +745,46 @@ def create_app() -> FastAPI:
                 conn.commit()
         return {"ok": True}  # always identical; dedup'd by the unique key
 
+    @app.post("/api/feedback")
+    def submit_feedback(body: FeedbackBody, request: Request, background_tasks: BackgroundTasks) -> dict:
+        if body.hp:  # honeypot tripped → accept silently, store nothing
+            return {"ok": True}
+        message = (body.message or "").strip()[:4000]
+        if not message:
+            raise HTTPException(status_code=422, detail="Please add a short message.")
+        category = body.category if body.category in _FEEDBACK_CATEGORIES else "other"
+        email = ((body.email or "").strip()[:200]) or None
+        vh = _visitor_hash(body.visitor)
+        with get_conn() as conn:
+            if vh:  # light flood cap per anonymous token per day
+                recent = conn.execute(
+                    "SELECT COUNT(*) FROM feedback WHERE visitor_hash = ? AND day = date('now')", (vh,)
+                ).fetchone()[0]
+                if recent >= 8:
+                    return {"ok": True}
+            user = _current_user(conn, request)
+            conn.execute(
+                "INSERT INTO feedback (category, message, contact_email, user_id, visitor_hash, day) "
+                "VALUES (?, ?, ?, ?, ?, date('now'))",
+                (category, message, email, user["id"] if user else None, vh),
+            )
+            conn.commit()
+            who = user["email"] if user else "anonymous visitor"
+        for addr in ADMIN_EMAILS:
+            background_tasks.add_task(_feedback_email_safe, addr, category, message, email, who)
+        return {"ok": True}
+
+    @app.get("/api/admin/feedback")
+    def admin_feedback(request: Request) -> list[dict]:
+        with get_conn() as conn:
+            _require_admin(conn, request)
+            rows = conn.execute(
+                "SELECT f.id, f.category, f.message, f.contact_email, f.created_at, "
+                "u.email AS user_email FROM feedback f LEFT JOIN users u ON u.id = f.user_id "
+                "ORDER BY f.created_at DESC LIMIT 100"
+            ).fetchall()
+        return [dict(r) for r in rows]
+
     @app.get("/api/admin/stats")
     def admin_stats(request: Request) -> dict:
         with get_conn() as conn:
diff --git a/goodnews/db.py b/goodnews/db.py
index f478f19..f30b4a1 100644
--- a/goodnews/db.py
+++ b/goodnews/db.py
@@ -224,6 +224,21 @@ CREATE TABLE IF NOT EXISTS events (
 CREATE INDEX IF NOT EXISTS idx_events_day ON events(day);
 CREATE INDEX IF NOT EXISTS idx_events_kind ON events(kind);
 CREATE INDEX IF NOT EXISTS idx_events_article ON events(article_id);
+
+-- User feedback (idea / concern / bug / praise). Anonymous-friendly; optional
+-- contact email only if the person wants a reply. visitor_hash is for rate-limit
+-- only (the same hashed anonymous token used by analytics).
+CREATE TABLE IF NOT EXISTS feedback (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    category TEXT NOT NULL DEFAULT 'other',
+    message TEXT NOT NULL,
+    contact_email TEXT,
+    user_id INTEGER REFERENCES users(id) ON DELETE SET NULL,
+    visitor_hash TEXT NOT NULL DEFAULT '',
+    day TEXT NOT NULL,
+    created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+CREATE INDEX IF NOT EXISTS idx_feedback_created ON feedback(created_at);
 """
 
 
diff --git a/goodnews/email_send.py b/goodnews/email_send.py
index 09a4be2..84d54c9 100644
--- a/goodnews/email_send.py
+++ b/goodnews/email_send.py
@@ -50,6 +50,19 @@ def send_email(to: str, subject: str, text: str, html: str | None = None) -> Non
         server.send_message(msg)
 
 
+def send_feedback(to: str, category: str, message: str, contact: str | None, who: str) -> None:
+    """Notify the admin of new user feedback (plain text is plenty here)."""
+    subject = f"Upbeat Bytes feedback · {category}"
+    reply = contact or "(none given)"
+    text = (
+        f"New feedback ({category})\n"
+        f"From: {who}\n"
+        f"Reply to: {reply}\n\n"
+        f"{message}\n"
+    )
+    send_email(to, subject, text)
+
+
 def send_magic_link(to: str, link: str) -> None:
     """Send a calm, single-purpose sign-in email."""
     subject = "Your Upbeat Bytes sign-in link"
diff --git a/goodnews/queries.py b/goodnews/queries.py
index b05e67d..6262f9a 100644
--- a/goodnews/queries.py
+++ b/goodnews/queries.py
@@ -222,35 +222,76 @@ def admin_stats(conn: sqlite3.Connection, days: int = 30) -> dict:
     ).fetchall()
     loyalty = {r["g"]: r["n"] for r in rows}
 
+    # An "open" = opening the article via our summary page (legacy 'open' + 'summary_viewed').
+    OPEN = "e.kind IN ('open','summary_viewed')"
+
     top_articles = [dict(r) for r in conn.execute(
-        "SELECT e.article_id AS id, a.title, src.name AS source, COUNT(*) AS opens "
-        "FROM events e JOIN articles a ON a.id=e.article_id JOIN sources src ON src.id=a.source_id "
-        "WHERE e.kind='open' AND e.article_id>0 AND e.day>=date('now',?) "
-        "GROUP BY e.article_id ORDER BY opens DESC LIMIT 12", (since,),
+        f"SELECT e.article_id AS id, a.title, src.name AS source, COUNT(*) AS opens "
+        f"FROM events e JOIN articles a ON a.id=e.article_id JOIN sources src ON src.id=a.source_id "
+        f"WHERE {OPEN} AND e.article_id>0 AND e.day>=date('now',?) "
+        f"GROUP BY e.article_id ORDER BY opens DESC LIMIT 12", (since,),
     )]
 
     top_groupings = [dict(r) for r in conn.execute(
-        "SELECT t.tag, COUNT(*) AS opens FROM events e JOIN article_tags t ON t.article_id=e.article_id "
-        "WHERE e.kind='open' AND e.day>=date('now',?) GROUP BY t.tag ORDER BY opens DESC LIMIT 12", (since,),
+        f"SELECT t.tag, COUNT(*) AS opens FROM events e JOIN article_tags t ON t.article_id=e.article_id "
+        f"WHERE {OPEN} AND e.day>=date('now',?) GROUP BY t.tag ORDER BY opens DESC LIMIT 12", (since,),
     )]
 
     top_topics = [dict(r) for r in conn.execute(
-        "SELECT s.topic, COUNT(*) AS opens FROM events e JOIN article_scores s ON s.article_id=e.article_id "
-        "WHERE e.kind='open' AND s.topic IS NOT NULL AND e.day>=date('now',?) "
-        "GROUP BY s.topic ORDER BY opens DESC", (since,),
+        f"SELECT s.topic, COUNT(*) AS opens FROM events e JOIN article_scores s ON s.article_id=e.article_id "
+        f"WHERE {OPEN} AND s.topic IS NOT NULL AND e.day>=date('now',?) "
+        f"GROUP BY s.topic ORDER BY opens DESC", (since,),
     )]
 
-    share_rows = conn.execute(
-        "SELECT kind, COUNT(*) n FROM events "
-        "WHERE kind IN ('share_ub','copy_source','native_share','source_click') AND day>=date('now',?) "
-        "GROUP BY kind", (since,),
+    # Counts per event kind over the window (each = distinct visitor-days, by dedup).
+    kc_rows = conn.execute(
+        "SELECT kind, COUNT(*) n FROM events WHERE day>=date('now',?) GROUP BY kind", (since,)
     ).fetchall()
-    shares = {k: 0 for k in ("share_ub", "copy_source", "native_share", "source_click")}
-    shares.update({r["kind"]: r["n"] for r in share_rows})
+    kc = {r["kind"]: r["n"] for r in kc_rows}
+
+    shares = {k: kc.get(k, 0) for k in ("share_ub", "copy_source", "native_share", "source_click")}
+
+    summary_views = kc.get("summary_viewed", 0)
+    source_clicks = kc.get("source_click", 0)
+    funnel = {
+        "summary_viewed": summary_views,
+        "source_click": source_clicks,
+        "full_story": kc.get("full_story", 0),
+        "source_rate": round(100 * source_clicks / summary_views) if summary_views else 0,
+    }
+    emotional_mix = {
+        "not_today": kc.get("not_today", 0),
+        "less_like_this": kc.get("less_like_this", 0),
+        "hide_topic": kc.get("hide_topic", 0),
+    }
+    paywall = {
+        "paywall_replace": kc.get("paywall_replace", 0),
+        "paywalled_source_open": kc.get("paywalled_source_open", 0),
+    }
+    replace = {"used": kc.get("replace_used", 0), "none": kc.get("replace_none", 0)}
+
+    # Accounts — aggregate counts only (no emails, no per-user listing).
+    accounts = {
+        "total": scalar("SELECT COUNT(*) FROM users"),
+        "new_today": scalar("SELECT COUNT(*) FROM users WHERE date(created_at)=date('now')"),
+        "new_7d": scalar("SELECT COUNT(*) FROM users WHERE created_at>=date('now','-7 days')"),
+        "new_30d": scalar("SELECT COUNT(*) FROM users WHERE created_at>=date('now',?)", (since,)),
+        "active_7d": scalar("SELECT COUNT(DISTINCT user_id) FROM sessions WHERE last_seen_at>=date('now','-7 days')"),
+    }
+
+    # Returning-visitor buckets by distinct active days in the window.
+    bucket_rows = conn.execute(
+        "SELECT CASE WHEN d>=8 THEN '8+' WHEN d>=4 THEN '4-7' WHEN d>=2 THEN '2-3' ELSE 'new' END b, "
+        "COUNT(*) n FROM (SELECT visitor_hash, COUNT(DISTINCT day) d FROM events "
+        "WHERE kind='visit' AND visitor_hash!='' AND day>=date('now',?) GROUP BY visitor_hash) GROUP BY b",
+        (since,),
+    ).fetchall()
+    buckets = {r["b"]: r["n"] for r in bucket_rows}
+    retention = {k: buckets.get(k, 0) for k in ("new", "2-3", "4-7", "8+")}
 
     daily = [dict(r) for r in conn.execute(
-        "SELECT day, SUM(kind='open') AS opens, SUM(kind='visit') AS visits FROM events "
-        "WHERE day>=date('now',?) GROUP BY day ORDER BY day", (since,),
+        "SELECT day, SUM(kind IN ('open','summary_viewed')) AS opens, SUM(kind='visit') AS visits "
+        "FROM events WHERE day>=date('now',?) GROUP BY day ORDER BY day", (since,),
     )]
 
     return {
@@ -258,6 +299,12 @@ def admin_stats(conn: sqlite3.Connection, days: int = 30) -> dict:
         "visitors": visitors,
         "returning": loyalty.get("returning", 0),
         "once": loyalty.get("once", 0),
+        "retention": retention,
+        "accounts": accounts,
+        "funnel": funnel,
+        "emotional_mix": emotional_mix,
+        "paywall": paywall,
+        "replace": replace,
         "top_articles": top_articles,
         "top_groupings": top_groupings,
         "top_topics": top_topics,
diff --git a/goodnews/share.py b/goodnews/share.py
index e7457fd..388e580 100644
--- a/goodnews/share.py
+++ b/goodnews/share.py
@@ -162,6 +162,15 @@ def render_share_page(article: dict, base_url: str, summary: str | None = None)
       </div>
     </article>
   </main>
+  <script>
+(function(){{
+  try{{
+    var v=localStorage.getItem('goodnews:visitor')||'';
+    var b=JSON.stringify({{kind:'summary_viewed',article_id:{aid},visitor:v}});
+    if(navigator.sendBeacon) navigator.sendBeacon('/api/events', new Blob([b],{{type:'application/json'}}));
+  }}catch(e){{}}
+}})();
+</script>
   {src_click}
   <script>
 (function(){{
diff --git a/tests/test_feedback.py b/tests/test_feedback.py
new file mode 100644
index 0000000..360abfb
--- /dev/null
+++ b/tests/test_feedback.py
@@ -0,0 +1,52 @@
+import pytest
+from fastapi.testclient import TestClient
+
+
+def _app(tmp_path, monkeypatch, admin=""):
+    db = tmp_path / "t.sqlite3"
+    monkeypatch.setenv("GOODNEWS_DB", str(db))
+    monkeypatch.setenv("GOODNEWS_PUBLIC_BASE_URL", "http://testserver")
+    monkeypatch.setenv("GOODNEWS_ADMIN_EMAILS", admin)
+    import importlib
+    import goodnews.api as api
+    importlib.reload(api)
+    from goodnews.db import connect, init_db
+    connect(str(db)).close()
+    c = connect(str(db)); init_db(c); c.close()
+    return api.create_app(), api, db
+
+
+def _count(db):
+    from goodnews.db import connect
+    c = connect(str(db)); n = c.execute("SELECT COUNT(*) FROM feedback").fetchone()[0]; c.close()
+    return n
+
+
+def test_feedback_stored_and_validated(tmp_path, monkeypatch):
+    app, api, db = _app(tmp_path, monkeypatch)
+    monkeypatch.setattr(api.email_send, "send_feedback", lambda *a, **k: None)
+    tc = TestClient(app)
+    assert tc.post("/api/feedback", json={"message": "  "}).status_code == 422  # empty
+    assert tc.post("/api/feedback", json={"category": "idea", "message": "Love it", "visitor": "v"}).json() == {"ok": True}
+    assert _count(db) == 1
+    # honeypot tripped → accepted but NOT stored
+    tc.post("/api/feedback", json={"message": "spam", "hp": "i am a bot", "visitor": "v"})
+    assert _count(db) == 1
+
+
+def test_admin_feedback_gated(tmp_path, monkeypatch):
+    app, api, db = _app(tmp_path, monkeypatch, admin="boss@x.com")
+    monkeypatch.setattr(api.email_send, "send_feedback", lambda *a, **k: None)
+    TestClient(app).post("/api/feedback", json={"message": "hi", "visitor": "v"})
+    assert TestClient(app).get("/api/admin/feedback").status_code == 401  # anon
+
+    # sign in as admin
+    tc = TestClient(app); sent = {}
+    monkeypatch.setattr(api.email_send, "send_magic_link", lambda to, link: sent.update(link=link))
+    tc.post("/api/auth/email/start", json={"email": "boss@x.com"})
+    tc.post("/api/auth/email/verify", json={"token": sent["link"].split("token=")[1]})
+    fb = tc.get("/api/admin/feedback").json()
+    assert len(fb) == 1 and fb[0]["message"] == "hi"
+    stats = tc.get("/api/admin/stats").json()
+    assert {"funnel", "accounts", "retention", "emotional_mix", "paywall", "replace"} <= set(stats)
+    assert stats["accounts"]["total"] >= 1