diff --git a/src/pages/AdminSettings.tsx b/src/pages/AdminSettings.tsx
index 78aaf53..b1a9c52 100644
--- a/src/pages/AdminSettings.tsx
+++ b/src/pages/AdminSettings.tsx
@@ -1,5 +1,5 @@
 import { useState, useEffect } from 'react'
-import { CheckCircle, XCircle, RefreshCw, ChevronDown, ChevronUp } from 'lucide-react'
+import { CheckCircle, XCircle, RefreshCw, ChevronDown, ChevronUp, Clock } from 'lucide-react'
 import { Sidebar } from '../components/Sidebar'
 import type { User } from '../types'
 
@@ -36,8 +36,18 @@ const FIELD_LABELS: Record<string, string> = {
   location_id: 'Default Location',
 }
 
+interface AppRow {
+  id: number
+  slug: string
+  name: string
+  theme_color: string
+  category: string | null
+  active: boolean
+  max_session_hours: number | null
+}
+
 export function AdminSettings({ user }: { user: User }) {
-  const [tab, setTab] = useState<'integrations' | 'rooms'>('integrations')
+  const [tab, setTab] = useState<'integrations' | 'rooms' | 'apps'>('integrations')
   const [integrations, setIntegrations] = useState<Integration[]>([])
   const [loading, setLoading] = useState(true)
 
@@ -58,7 +68,7 @@ export function AdminSettings({ user }: { user: User }) {
         </p>
 
         <div style={{ display: 'flex', gap: '0.25rem', marginBottom: '1.75rem', borderBottom: '1px solid var(--card-border)', paddingBottom: '0' }}>
-          {(['integrations', 'rooms'] as const).map(t => (
+          {(['integrations', 'rooms', 'apps'] as const).map(t => (
             <button key={t} onClick={() => setTab(t)} style={{
               background: 'none', border: 'none', padding: '0.5rem 1rem',
               fontSize: '0.85rem', fontWeight: 600, cursor: 'pointer',
@@ -66,7 +76,7 @@ export function AdminSettings({ user }: { user: User }) {
               borderBottom: tab === t ? '2px solid var(--navy)' : '2px solid transparent',
               marginBottom: '-1px',
             }}>
-              {t === 'integrations' ? 'Integrations' : 'Rooms & Sites'}
+              {t === 'integrations' ? 'Integrations' : t === 'rooms' ? 'Rooms & Sites' : 'App Settings'}
             </button>
           ))}
         </div>
@@ -84,6 +94,7 @@ export function AdminSettings({ user }: { user: User }) {
         )}
 
         {tab === 'rooms' && <RoomsTab />}
+        {tab === 'apps' && <AppsTab />}
       </main>
     </div>
   )
@@ -426,6 +437,111 @@ function RoomsTab() {
   )
 }
 
+function AppsTab() {
+  const [apps, setApps] = useState<AppRow[]>([])
+  const [loading, setLoading] = useState(true)
+  const [values, setValues] = useState<Record<string, string>>({})
+  const [saving, setSaving] = useState<Record<string, boolean>>({})
+  const [saved, setSaved] = useState<Record<string, boolean>>({})
+
+  useEffect(() => {
+    fetch('/api/auth/admin/apps', { credentials: 'include' })
+      .then(r => r.json())
+      .then((data: AppRow[]) => {
+        const active = data.filter(a => a.active)
+        setApps(active)
+        const init: Record<string, string> = {}
+        active.forEach(a => { init[a.slug] = a.max_session_hours != null ? String(a.max_session_hours) : '' })
+        setValues(init)
+      })
+      .finally(() => setLoading(false))
+  }, [])
+
+  async function save(slug: string) {
+    setSaving(prev => ({ ...prev, [slug]: true }))
+    setSaved(prev => ({ ...prev, [slug]: false }))
+    const raw = values[slug].trim()
+    const max_session_hours = raw === '' ? null : parseInt(raw)
+    await fetch(`/api/auth/admin/apps/${slug}`, {
+      method: 'PATCH', credentials: 'include',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ max_session_hours }),
+    })
+    setSaving(prev => ({ ...prev, [slug]: false }))
+    setSaved(prev => ({ ...prev, [slug]: true }))
+    setTimeout(() => setSaved(prev => ({ ...prev, [slug]: false })), 2000)
+  }
+
+  const byCategory = apps.reduce<Record<string, AppRow[]>>((acc, a) => {
+    const cat = a.category ?? 'Other'
+    ;(acc[cat] ??= []).push(a)
+    return acc
+  }, {})
+
+  if (loading) return <p style={{ color: 'var(--text-mid)' }}>Loading…</p>
+
+  return (
+    <div style={{ maxWidth: '640px' }}>
+      <p style={{ fontSize: '0.83rem', color: 'var(--text-mid)', marginBottom: '1.5rem' }}>
+        Set a maximum session age per app. Users will be prompted to re-login when the limit is reached,
+        even if their global session is still valid. Leave blank to use the global default (30 days).
+      </p>
+
+      {Object.entries(byCategory).sort(([a], [b]) => a.localeCompare(b)).map(([cat, catApps]) => (
+        <div key={cat} style={{ marginBottom: '1.5rem' }}>
+          <p style={{ fontSize: '0.72rem', fontWeight: 700, color: 'var(--text-mid)',
+            textTransform: 'uppercase', letterSpacing: '0.08em', marginBottom: '0.5rem' }}>
+            {cat}
+          </p>
+          <div style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem' }}>
+            {catApps.map(app => (
+              <div key={app.slug} style={{
+                background: 'var(--card-bg)', border: '1px solid var(--card-border)',
+                borderRadius: 'var(--radius)', padding: '0.85rem 1.1rem',
+                display: 'flex', alignItems: 'center', gap: '1rem',
+                boxShadow: 'var(--shadow-sm)',
+              }}>
+                <div style={{
+                  width: '10px', height: '10px', borderRadius: '50%', flexShrink: 0,
+                  background: app.theme_color,
+                }} />
+                <span style={{ flex: 1, fontSize: '0.88rem', fontWeight: 500, color: 'var(--text-dark)' }}>
+                  {app.name}
+                </span>
+                <div style={{ display: 'flex', alignItems: 'center', gap: '0.5rem' }}>
+                  <Clock size={13} strokeWidth={1.75} style={{ color: 'var(--text-mid)', flexShrink: 0 }} />
+                  <input
+                    type="number" min="1"
+                    value={values[app.slug] ?? ''}
+                    onChange={e => setValues(prev => ({ ...prev, [app.slug]: e.target.value }))}
+                    onKeyDown={e => e.key === 'Enter' && save(app.slug)}
+                    placeholder="Default (720h)"
+                    style={{ ...inputStyle, width: '130px', textAlign: 'right' }}
+                  />
+                  <span style={{ fontSize: '0.78rem', color: 'var(--text-mid)', flexShrink: 0 }}>hours</span>
+                </div>
+                <button
+                  onClick={() => save(app.slug)}
+                  disabled={saving[app.slug]}
+                  style={{
+                    background: saved[app.slug] ? '#16a34a' : 'var(--navy)',
+                    color: '#fff', border: 'none', borderRadius: '6px',
+                    padding: '0.35rem 0.85rem', fontSize: '0.78rem', fontWeight: 600,
+                    cursor: saving[app.slug] ? 'wait' : 'pointer', flexShrink: 0,
+                    transition: 'background 0.2s',
+                  }}
+                >
+                  {saving[app.slug] ? '…' : saved[app.slug] ? '✓' : 'Save'}
+                </button>
+              </div>
+            ))}
+          </div>
+        </div>
+      ))}
+    </div>
+  )
+}
+
 const inputStyle: React.CSSProperties = {
   background: 'var(--body-bg)', border: '1px solid var(--card-border)',
   borderRadius: '6px', padding: '0.45rem 0.75rem', fontSize: '0.85rem',