diff --git a/landing/src/App.jsx b/landing/src/App.jsx
index db346f1..03d72e5 100644
--- a/landing/src/App.jsx
+++ b/landing/src/App.jsx
@@ -894,7 +894,6 @@ const readSource = () => new URLSearchParams(window.location.search).get('source
 export default function App({ locale = 'fr' }) {
   const t = COPY[locale]
   const [headerElevated, setHeaderElevated] = useState(false)
-  const [sharedReturnUrl, setSharedReturnUrl] = useState('')
   const scrollMilestonesRef = useRef({ half: false, full: false })
 
   // La page est prérendue à la compilation, sans URL : le premier rendu est toujours la variante
@@ -914,28 +913,6 @@ export default function App({ locale = 'fr' }) {
     analytics.capture('page_viewed', buildEventProps())
   }, []) // eslint-disable-line react-hooks/exhaustive-deps
 
-  useEffect(() => {
-    if (source !== 'app-shared') {
-      setSharedReturnUrl('')
-      return
-    }
-
-    const returnUrlFromQuery = new URLSearchParams(window.location.search).get('return_url') || ''
-
-    try {
-      if (returnUrlFromQuery) {
-        sessionStorage.setItem('parenthese_return_url', returnUrlFromQuery)
-        setSharedReturnUrl(returnUrlFromQuery)
-        return
-      }
-
-      const fromSession = sessionStorage.getItem('parenthese_return_url') || ''
-      setSharedReturnUrl(fromSession)
-    } catch {
-      setSharedReturnUrl(returnUrlFromQuery)
-    }
-  }, [source])
-
   // Bordure du header au défilement + paliers de scroll pour PostHog
   useEffect(() => {
     const onScroll = () => {
@@ -1112,9 +1089,6 @@ export default function App({ locale = 'fr' }) {
           <h2 className="t-d2">{t.final.title[0]}<em className="s">{t.final.title[1]}</em></h2>
           <p className="lede">{t.final.lede}</p>
           <button type="button" onClick={() => goToSignup('footer')} className="btn p">{t.cta}</button>
-          {source === 'app-shared' && sharedReturnUrl && (
-            <a href={sharedReturnUrl} className="back">{t.final.back}</a>
-          )}
         </div>
       </section>
 
diff --git a/landing/src/i18n.js b/landing/src/i18n.js
index bd81292..d426bbb 100644
--- a/landing/src/i18n.js
+++ b/landing/src/i18n.js
@@ -111,7 +111,6 @@ export const COPY = {
     final: {
       title: ['Commencez par ', 'un seul visage'],
       lede: "Le vôtre, ou celui de quelqu'un que vous aimeriez garder.",
-      back: "Ou retourner explorer l'arbre partagé",
     },
     footer: {
       label: 'Pied de page',
@@ -220,7 +219,6 @@ export const COPY = {
     final: {
       title: ['Start with ', 'a single face'],
       lede: "Yours, or the face of someone you'd like to keep close.",
-      back: 'Or go back to the shared tree',
     },
     footer: {
       label: 'Footer',
diff --git a/landing/src/index.css b/landing/src/index.css
index f9a3a92..ed9e8ae 100644
--- a/landing/src/index.css
+++ b/landing/src/index.css
@@ -191,7 +191,6 @@ html.logo-intro .lk-nom { animation: lk-nom 700ms var(--ease-out) 380ms both; }
 /* fin */
 .final { background: var(--peche-50); text-align: center; padding: clamp(64px, 9vw, 112px) var(--gut); }
 .final .wrap { display: grid; justify-items: center; gap: 22px; }
-.final .back { font: 500 14px var(--sans); color: var(--encre2); }
 
 .foot { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding-block: 28px; font: 400 13px var(--sans); color: var(--doux); }
 .foot nav { display: flex; gap: 18px; flex-wrap: wrap; }