diff --git a/frontend/dashboard.css b/frontend/dashboard.css
index ed2bf4f..ede3276 100644
--- a/frontend/dashboard.css
+++ b/frontend/dashboard.css
@@ -1555,6 +1555,7 @@ textarea { resize: vertical; min-height: 120px; }
   .mobile-queue-list .mobile-recent-work-row button { min-height:44px; width:auto; }
   .mobile-queue-list .mobile-recent-work-row [data-recent-work-route] { min-width:0; width:100%; min-height:56px; overflow-wrap:anywhere; }
   .mobile-queue-list .mobile-recent-work-row [data-recent-work-pin] { min-width:64px; justify-content:center; padding-inline:12px; }
+  .mobile-pinned-work-toggle { min-height:44px; width:100%; margin-top:8px; }
   .mobile-queue-list [data-mobile-queue-count] { min-width:28px; padding:3px 8px; border-radius:999px; text-align:center; background:#1d426d; }
   .mobile-queue-list [data-mobile-queue="agenda"][data-deadlines="true"] { border-color:#f59e0b; background:#30240f; box-shadow:inset 3px 0 #f59e0b; }
   .mobile-queue-list [data-recommended="true"] { border-color:#60a5fa; box-shadow:0 0 0 2px #60a5fa; }
diff --git a/frontend/dashboard.js b/frontend/dashboard.js
index a8a799c..6293779 100644
--- a/frontend/dashboard.js
+++ b/frontend/dashboard.js
@@ -441,6 +441,7 @@
     list:qs('#mobile-recent-work-list'),
     pinnedSection:qs('#mobile-pinned-work'),
     pinnedList:qs('#mobile-pinned-work-list'),
+    pinnedToggle:qs('#mobile-pinned-work-toggle'),
     status:qs('#mobile-recent-work-status'),
     openRoute:fragment => {
       const sheet = qs('#mobile-queue-sheet');
diff --git a/frontend/index.html b/frontend/index.html
index 8923994..19955b0 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -2187,6 +2187,7 @@
     <section class="mobile-queue-group" id="mobile-pinned-work" aria-labelledby="mobile-pinned-work-heading" hidden>
       <h3 id="mobile-pinned-work-heading">Pinned work</h3>
       <div class="mobile-queue-list" id="mobile-pinned-work-list"></div>
+      <button class="mobile-pinned-work-toggle" id="mobile-pinned-work-toggle" type="button" aria-controls="mobile-pinned-work-list" aria-expanded="false" hidden>Show all</button>
     </section>
     <section class="mobile-queue-group" id="mobile-recent-work" aria-labelledby="mobile-recent-work-heading" hidden>
       <h3 id="mobile-recent-work-heading">Recent work</h3>
diff --git a/frontend/mobile-recent-work.js b/frontend/mobile-recent-work.js
index 9374c98..34ba073 100644
--- a/frontend/mobile-recent-work.js
+++ b/frontend/mobile-recent-work.js
@@ -24,6 +24,12 @@
   let retryAccount = '';
   let retryAttempt = 0;
   let operationSequence = 0;
+  let pinsExpanded = false;
+
+  options.pinnedToggle?.addEventListener?.('click', () => {
+    pinsExpanded = !pinsExpanded;
+    render();
+  });
 
   function operationId() {
     operationSequence += 1;
@@ -196,7 +202,9 @@
     if (!accountKey || !normalized) return false;
     const current = read();
     current.items = [normalized, ...current.items.filter(existing => existing.route !== normalized.route)].slice(0, limit);
-    current.pinned = current.pinned.map(existing => existing.route === normalized.route ? normalized : existing);
+    current.pinned = current.pinned.some(existing => existing.route === normalized.route)
+      ? [normalized, ...current.pinned.filter(existing => existing.route !== normalized.route)]
+      : current.pinned;
     current.pending = [{...normalized, operationId:operationId()}, ...current.pending.filter(existing => existing.route !== normalized.route)].slice(0, limit);
     if (!persist(current, accountKey)) return false;
     announce(current);
@@ -374,7 +382,10 @@
     button.setAttribute('type', 'button');
     button.setAttribute('data-recent-work-route', item.route);
     button.setAttribute('aria-label', 'Open ' + item.title + ', ' + itemDetail.toLowerCase().replace(' · ', ' '));
-    button.addEventListener('click', () => options.openRoute?.(item.route));
+    button.addEventListener('click', () => {
+      if (isPinned) record(item);
+      options.openRoute?.(item.route);
+    });
     action.textContent = isPinned ? 'Unpin' : 'Pin';
     action.setAttribute('type', 'button');
     action.setAttribute('data-recent-work-pin', isPinned ? 'unpin' : 'pin');
@@ -388,19 +399,28 @@
   function render() {
     const recent = items();
     const fixed = pinned();
+    const fixedRoutes = new Set(fixed.map(item => item.route));
+    const visibleRecent = recent.filter(item => !fixedRoutes.has(item.route));
     const list = options.list;
     const section = options.section;
     if (list && section && options.document) {
-      const rows = recent.map(item => row(item, false));
+      const rows = visibleRecent.map(item => row(item, false));
       list.replaceChildren(...rows);
       section.hidden = rows.length === 0;
     }
     if (options.pinnedList && options.pinnedSection && options.document) {
-      const rows = fixed.map(item => row(item, true));
+      const visiblePins = pinsExpanded ? fixed : fixed.slice(0, 3);
+      const rows = visiblePins.map(item => row(item, true));
       options.pinnedList.replaceChildren(...rows);
       options.pinnedSection.hidden = rows.length === 0;
     }
-    return recent.length + fixed.length;
+    if (options.pinnedToggle) {
+      options.pinnedToggle.hidden = fixed.length <= 3;
+      options.pinnedToggle.textContent = pinsExpanded ? 'Show fewer' : 'Show all ' + fixed.length;
+      options.pinnedToggle.setAttribute('aria-expanded', pinsExpanded ? 'true' : 'false');
+      options.pinnedToggle.setAttribute('aria-controls', 'mobile-pinned-work-list');
+    }
+    return visibleRecent.length + fixed.length;
   }
 
   return {items, pinned, record, pin, unpin, render, load, sync, startLifecycle, state};
diff --git a/src/recent_work_store.py b/src/recent_work_store.py
index d54c4f2..aa92cf5 100644
--- a/src/recent_work_store.py
+++ b/src/recent_work_store.py
@@ -141,9 +141,9 @@ class RecentWorkStore:
             state, _legacy = self._state(row, login)
             state["items"] = [normalized, *(entry for entry in state["items"] if entry["route"] != normalized["route"])][: self.limit]
             state["pinned"] = [
-                normalized if entry["route"] == normalized["route"] else entry
-                for entry in state["pinned"]
-            ]
+                normalized,
+                *(entry for entry in state["pinned"] if entry["route"] != normalized["route"]),
+            ] if any(entry["route"] == normalized["route"] for entry in state["pinned"]) else state["pinned"]
             self._write(connection, login, state)
         return state
 
diff --git a/tests/e2e/test_mobile_pinned_work_release.py b/tests/e2e/test_mobile_pinned_work_release.py
index 4dccddc..3f829b1 100644
--- a/tests/e2e/test_mobile_pinned_work_release.py
+++ b/tests/e2e/test_mobile_pinned_work_release.py
@@ -30,10 +30,6 @@ def test_operator_pins_and_reopens_frequent_work_without_phone_overflow(viewport
             getItem:key => values.get(key) || null,
             setItem:(key, value) => values.set(key, value),
           };
-          const item = {
-            kind:'issue', repository:'stackchain/stackchain-dashboard', number:1477,
-            title:'Pin frequent work across signed-in mobile devices',
-          };
           window.opened = [];
           window.recentWork = createMobileRecentWork({
             storage, getLogin:() => 'timmy', document,
@@ -41,32 +37,48 @@ def test_operator_pins_and_reopens_frequent_work_without_phone_overflow(viewport
             list:document.querySelector('#mobile-recent-work-list'),
             pinnedSection:document.querySelector('#mobile-pinned-work'),
             pinnedList:document.querySelector('#mobile-pinned-work-list'),
+            pinnedToggle:document.querySelector('#mobile-pinned-work-toggle'),
             status:document.querySelector('#mobile-recent-work-status'),
             openRoute:route => window.opened.push(route),
           });
-          window.recentWork.record(item);
-          window.recentWork.pin(item);
+          for (let number=1; number<=20; number += 1) {
+            const item = {
+              kind:'issue', repository:'stackchain/stackchain-dashboard', number,
+              title:'Pinned mobile work ' + number,
+            };
+            window.recentWork.record(item);
+            window.recentWork.pin(item);
+          }
           document.querySelector('#mobile-queue-sheet').showModal();
         }""")
 
         expect(page.locator("#mobile-pinned-work")).to_be_visible()
-        expect(page.locator("#mobile-recent-work")).to_be_visible()
+        expect(page.locator("#mobile-recent-work")).to_be_hidden()
+        expect(page.locator("#mobile-pinned-work-list .mobile-recent-work-row")).to_have_count(3)
         expect(page.locator("#mobile-recent-work-status")).to_have_text("Sync pending.")
+        toggle = page.locator("#mobile-pinned-work-toggle")
         open_button = page.get_by_role(
-            "button", name="Open Pin frequent work across signed-in mobile devices, issue stackchain/stackchain-dashboard #1477"
+            "button", name="Open Pinned mobile work 20, issue stackchain/stackchain-dashboard #20"
         ).first
         pin_button = page.get_by_role(
-            "button", name="Unpin Pin frequent work across signed-in mobile devices"
+            "button", name="Unpin Pinned mobile work 20"
         )
-        for control in (open_button, pin_button):
+        for control in (open_button, pin_button, toggle):
             bounds = control.bounding_box()
             assert bounds and bounds["height"] >= 44
             assert bounds["x"] >= 0 and bounds["x"] + bounds["width"] <= viewport["width"]
         assert page.evaluate("document.documentElement.scrollWidth <= window.innerWidth")
 
+        toggle.click()
+        expect(page.locator("#mobile-pinned-work-list .mobile-recent-work-row")).to_have_count(20)
+        expect(toggle).to_have_text("Show fewer")
+        assert toggle.get_attribute("aria-expanded") == "true"
+        toggle.click()
+        expect(page.locator("#mobile-pinned-work-list .mobile-recent-work-row")).to_have_count(3)
+
         open_button.focus()
         open_button.press("Enter")
         assert page.evaluate("window.opened") == [
-            "#/my-work/issue/stackchain/stackchain-dashboard/1477"
+            "#/my-work/issue/stackchain/stackchain-dashboard/20"
         ]
         browser.close()
diff --git a/tests/test_mobile_recent_work.py b/tests/test_mobile_recent_work.py
index 9b21d49..1652f1c 100644
--- a/tests/test_mobile_recent_work.py
+++ b/tests/test_mobile_recent_work.py
@@ -306,7 +306,7 @@ const recent=createRecentWork({{
 const pinnedImmediately=recent.pin(item);
 recent.render();
 const immediate={{pinned:recent.pinned(),status:status.textContent,recentHidden:recentSection.hidden,pinnedHidden:pinnedSection.hidden,
-  recentActions:recentList.children[0].children.map(child=>child.attributes),
+  recentRows:recentList.children.length,
   pinnedActions:pinnedList.children[0].children.map(child=>child.attributes)}};
 await recent.sync();
 pinnedList.children[0].children[0].click();
@@ -320,16 +320,16 @@ process.stdout.write(JSON.stringify({{pinnedImmediately,immediate,opened,unpinne
     assert payload["pinnedImmediately"] is True
     assert payload["immediate"]["pinned"][0]["number"] == 1477
     assert payload["immediate"]["status"] == "Sync pending."
-    assert payload["immediate"]["recentHidden"] is False
+    assert payload["immediate"]["recentHidden"] is True
     assert payload["immediate"]["pinnedHidden"] is False
-    assert payload["immediate"]["recentActions"][0]["data-recent-work-route"].endswith("/1477")
-    assert payload["immediate"]["recentActions"][1]["data-recent-work-pin"] == "pin"
+    assert payload["immediate"]["recentRows"] == 0
     assert payload["immediate"]["pinnedActions"][1]["data-recent-work-pin"] == "unpin"
     assert payload["opened"] == ["#/my-work/issue/stackchain/dashboard/1477"]
     assert payload["unpinnedImmediately"] is True
     assert payload["settled"] == []
     assert payload["calls"] == [
         ["api/v1/recent-work/pin", "PUT", payload["immediate"]["pinned"][0]],
+        ["api/v1/recent-work", "POST", payload["immediate"]["pinned"][0]],
         [
             "api/v1/recent-work/pin",
             "DELETE",
@@ -338,6 +338,61 @@ process.stdout.write(JSON.stringify({{pinnedImmediately,immediate,opened,unpinne
     ]
 
 
+def test_pinned_work_is_compact_deduplicated_and_promotes_on_open():
+    script = f"""
+const createRecentWork = require({json.dumps(str(RECENT_WORK))});
+const makeItem=number=>({{kind:'issue',repository:'stackchain/dashboard',number,title:'Issue '+number}});
+const values=new Map([['stackchain.mobile-recent-work.v1.alice',JSON.stringify({{
+  items:[1,2,3,4,5].map(makeItem),pinned:[1,2,3,4,5].map(makeItem),pending:[],pinOps:[]
+}})]]);
+function node(tag) {{ return {{tag,children:[],attributes:{{}},listeners:{{}},hidden:false,textContent:'',
+  appendChild(child){{this.children.push(child);return child;}},
+  replaceChildren(...children){{this.children=children;}},
+  setAttribute(name,value){{this.attributes[name]=String(value);}},
+  addEventListener(name,callback){{this.listeners[name]=callback;}},
+  click(){{this.listeners.click?.();}}, focus(){{this.focused=true;}},
+}}; }}
+const recentList=node('div'), recentSection=node('section');
+const pinnedList=node('div'), pinnedSection=node('section'), pinnedToggle=node('button');
+const opened=[];
+const recent=createRecentWork({{
+  storage:{{getItem:key=>values.get(key)||null,setItem:(key,value)=>values.set(key,value)}},
+  getLogin:()=>'alice',document:{{createElement:node}},debounceMs:99999,
+  list:recentList,section:recentSection,pinnedList,pinnedSection,pinnedToggle,
+  openRoute:route=>opened.push(route),
+}});
+recent.render();
+const collapsed={{pinnedRows:pinnedList.children.length,recentRows:recentList.children.length,
+  recentHidden:recentSection.hidden,toggleHidden:pinnedToggle.hidden,toggleText:pinnedToggle.textContent,
+  expanded:pinnedToggle.attributes['aria-expanded'],controls:pinnedToggle.attributes['aria-controls']}};
+pinnedList.children[2].children[0].click();
+const promoted=recent.pinned().map(item=>item.number);
+pinnedToggle.click();
+const expanded={{pinnedRows:pinnedList.children.length,toggleText:pinnedToggle.textContent,
+  ariaExpanded:pinnedToggle.attributes['aria-expanded']}};
+process.stdout.write(JSON.stringify({{collapsed,promoted,expanded,opened,state:recent.state()}}));
+"""
+    payload = run_node(script)
+
+    assert payload["collapsed"] == {
+        "pinnedRows": 3,
+        "recentRows": 0,
+        "recentHidden": True,
+        "toggleHidden": False,
+        "toggleText": "Show all 5",
+        "expanded": "false",
+        "controls": "mobile-pinned-work-list",
+    }
+    assert payload["promoted"] == [3, 1, 2, 4, 5]
+    assert payload["expanded"] == {
+        "pinnedRows": 5,
+        "toggleText": "Show fewer",
+        "ariaExpanded": "true",
+    }
+    assert payload["opened"] == ["#/my-work/issue/stackchain/dashboard/3"]
+    assert payload["state"] == {"pending": True, "pendingCount": 1}
+
+
 def test_mobile_queues_integrates_recent_work_with_canonical_detail_routes():
     html = INDEX.read_text()
     dashboard = DASHBOARD.read_text()
@@ -347,6 +402,8 @@ def test_mobile_queues_integrates_recent_work_with_canonical_detail_routes():
     assert 'id="mobile-recent-work-list"' in html
     assert 'id="mobile-pinned-work"' in html
     assert 'id="mobile-pinned-work-list"' in html
+    assert 'id="mobile-pinned-work-toggle"' in html
+    assert 'aria-controls="mobile-pinned-work-list"' in html
     assert 'id="mobile-recent-work-status" role="status" aria-live="polite"' in html
     assert '<script src="static/mobile-recent-work.js"></script>' in html
     assert "createMobileRecentWork({" in dashboard
@@ -354,6 +411,7 @@ def test_mobile_queues_integrates_recent_work_with_canonical_detail_routes():
     assert "status:qs('#mobile-recent-work-status')" in dashboard
     assert "pinnedList:qs('#mobile-pinned-work-list')" in dashboard
     assert "pinnedSection:qs('#mobile-pinned-work')" in dashboard
+    assert "pinnedToggle:qs('#mobile-pinned-work-toggle')" in dashboard
     assert "mobileRecentWork.startLifecycle({window, document})" in dashboard
     assert "void mobileRecentWork.load();" in dashboard
     assert "mobileRecentWork.record(item)" in dashboard
diff --git a/tests/test_recent_work_store.py b/tests/test_recent_work_store.py
index b4dfd7c..8a92f0a 100644
--- a/tests/test_recent_work_store.py
+++ b/tests/test_recent_work_store.py
@@ -60,6 +60,21 @@ def test_pinned_work_survives_recent_limit_and_unpin_keeps_recent_item(tmp_path)
     assert "#/my-work/issue" not in payload
 
 
+def test_reopening_pinned_work_promotes_it_for_every_device(tmp_path):
+    store = RecentWorkStore(
+        tmp_path / "recent-work.sqlite3",
+        encryption_key=b"r" * 32,
+    )
+    for number in range(1, 5):
+        store.pin("timmy", item(number))
+
+    reopened = store.record("timmy", item(1, title="Issue 1 current"))
+
+    assert [entry["number"] for entry in reopened["pinned"]] == [1, 4, 3, 2]
+    assert reopened["pinned"][0]["title"] == "Issue 1 current"
+    assert store.get("timmy")["pinned"] == reopened["pinned"]
+
+
 def test_recent_work_rejects_noncanonical_or_unsupported_items(tmp_path):
     store = RecentWorkStore(tmp_path / "recent-work.sqlite3", encryption_key=b"r" * 32)