diff --git a/apps/frontend-mobile/app/(tabs)/profile.tsx b/apps/frontend-mobile/app/(tabs)/profile.tsx
index bef1f9e..25ea312 100644
--- a/apps/frontend-mobile/app/(tabs)/profile.tsx
+++ b/apps/frontend-mobile/app/(tabs)/profile.tsx
@@ -379,6 +379,14 @@ export default function ProfileScreen() {
             </TouchableOpacity>
           </>
         )}
+        <View style={[styles.menuDivider, { backgroundColor: colors.surfaceLow }]} />
+        <TouchableOpacity style={styles.menuRow} onPress={() => router.push('/privacy')}>
+          <View style={[styles.menuIconCircle, { backgroundColor: colors.surfaceLow }]}>
+            <Ionicons name="shield-checkmark-outline" size={20} color={colors.primary} />
+          </View>
+          <Text style={[styles.menuLabel, { color: colors.text }]}>{t('nav.privacy')}</Text>
+          <Ionicons name="chevron-forward" size={18} color={colors.textSecondary} />
+        </TouchableOpacity>
       </View>
 
       {/* Search history */}
diff --git a/apps/frontend-mobile/app/_layout.tsx b/apps/frontend-mobile/app/_layout.tsx
index 3283cf9..8007a13 100644
--- a/apps/frontend-mobile/app/_layout.tsx
+++ b/apps/frontend-mobile/app/_layout.tsx
@@ -1,4 +1,4 @@
-import React, { useEffect, useRef } from 'react';
+import React, { useEffect, useRef, useState } from 'react';
 import { Stack } from 'expo-router';
 import { StatusBar } from 'expo-status-bar';
 import { Image, StyleSheet, View } from 'react-native';
@@ -10,6 +10,8 @@ import { registerForPushNotifications, addNotificationListener, addNotificationR
 import { ThemeProvider, useThemeContext } from '../components/ThemeProvider';
 import { LanguageProvider, useTranslation } from '../src/i18n';
 import { initFaro } from '../services/faro';
+import { hasConsentChoice } from '../services/consent';
+import CookieBanner from '../components/CookieBanner';
 
 // Boot Faro RUM once, as early as possible.
 initFaro();
@@ -23,6 +25,7 @@ function RootLayoutInner() {
   const { checkAuth } = useAuthStore();
   const { colors, isDark } = useThemeContext();
   const { t } = useTranslation();
+  const [showCookieBanner, setShowCookieBanner] = useState(false);
   const notificationListener = useRef<ReturnType<typeof addNotificationListener>>();
   const responseListener = useRef<ReturnType<typeof addNotificationResponseListener>>();
 
@@ -31,6 +34,11 @@ function RootLayoutInner() {
 
     registerForPushNotifications();
 
+    (async () => {
+      const consentChoice = await hasConsentChoice();
+      if (!consentChoice) setShowCookieBanner(true);
+    })();
+
     notificationListener.current = addNotificationListener((notification) => {
       console.log('Notification received:', notification);
     });
@@ -85,7 +93,18 @@ function RootLayoutInner() {
             headerShown: false,
           }}
         />
+        <Stack.Screen name="privacy" options={{ title: 'Política de Privacidad' }} />
       </Stack>
+      {showCookieBanner && (
+        <CookieBanner
+          onConsent={async (consents) => {
+            const { saveConsents } = await import('../services/consent');
+            await saveConsents(consents);
+            setShowCookieBanner(false);
+          }}
+          onPrivacyPress={() => setShowCookieBanner(false)}
+        />
+      )}
       <StatusBar style={isDark ? 'light' : 'auto'} />
     </>
   );
diff --git a/apps/frontend-mobile/app/privacy.tsx b/apps/frontend-mobile/app/privacy.tsx
new file mode 100644
index 0000000..49c6d9c
--- /dev/null
+++ b/apps/frontend-mobile/app/privacy.tsx
@@ -0,0 +1,44 @@
+import React from 'react';
+import { View, Text, ScrollView, TouchableOpacity, StyleSheet } from 'react-native';
+import { useRouter } from 'expo-router';
+import { Ionicons } from '@expo/vector-icons';
+import { useThemeContext } from '../components/ThemeProvider';
+import { useTranslation } from '../src/i18n';
+import { spacing, borderRadius } from '../constants/theme';
+
+const SECTIONS = ['controller', 'data_collected', 'purpose', 'legal_basis', 'external_services', 'retention', 'rights', 'contact', 'cookies'] as const;
+
+export default function PrivacyScreen() {
+  const router = useRouter();
+  const { colors } = useThemeContext();
+  const { t } = useTranslation();
+
+  return (
+    <ScrollView style={[styles.container, { backgroundColor: colors.background }]}>
+      <View style={styles.header}>
+        <TouchableOpacity onPress={() => router.back()} style={[styles.backBtn, { backgroundColor: colors.card }]}>
+          <Ionicons name="arrow-back" size={20} color={colors.text} />
+        </TouchableOpacity>
+        <Text style={[styles.title, { color: colors.text }]}>{t('privacy.title')}</Text>
+      </View>
+      <Text style={[styles.updated, { color: colors.textSecondary }]}>{t('privacy.last_updated')}</Text>
+      {SECTIONS.map(section => (
+        <View key={section} style={[styles.section, { backgroundColor: colors.card }]}>
+          <Text style={[styles.sectionTitle, { color: colors.text }]}>{t(`privacy.section.${section}.title`)}</Text>
+          <Text style={[styles.sectionContent, { color: colors.textSecondary }]}>{t(`privacy.section.${section}.content`)}</Text>
+        </View>
+      ))}
+    </ScrollView>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: { flex: 1, padding: spacing.md },
+  header: { flexDirection: 'row', alignItems: 'center', gap: 12, marginBottom: 16 },
+  backBtn: { width: 36, height: 36, borderRadius: borderRadius.md, justifyContent: 'center', alignItems: 'center' },
+  title: { fontSize: 22, fontWeight: '700' },
+  updated: { fontSize: 12, marginBottom: 16 },
+  section: { borderRadius: borderRadius.md, padding: 16, marginBottom: 12 },
+  sectionTitle: { fontSize: 16, fontWeight: '700', marginBottom: 8 },
+  sectionContent: { fontSize: 14, lineHeight: 22 },
+});
diff --git a/apps/frontend-mobile/app/scanner.tsx b/apps/frontend-mobile/app/scanner.tsx
index 02a786b..3f4490a 100644
--- a/apps/frontend-mobile/app/scanner.tsx
+++ b/apps/frontend-mobile/app/scanner.tsx
@@ -3,12 +3,16 @@ import { View, StyleSheet } from 'react-native';
 import { useRouter } from 'expo-router';
 import { BarcodeScanner } from '../components/BarcodeScanner';
 import { searchMedicines } from '../services/medicines';
+import { hasConsent } from '../services/consent';
+import HealthConsentModal from '../components/HealthConsentModal';
 
 export default function ScannerScreen() {
   const router = useRouter();
   const [isSearching, setIsSearching] = useState(false);
+  const [showHealthConsent, setShowHealthConsent] = useState(false);
+  const [pendingBarcode, setPendingBarcode] = useState<string | null>(null);
 
-  const handleBarcodeScanned = async (barcode: string) => {
+  const processBarcode = async (barcode: string) => {
     setIsSearching(true);
     try {
       const results = await searchMedicines(barcode);
@@ -25,6 +29,16 @@ export default function ScannerScreen() {
     }
   };
 
+  const handleBarcodeScanned = async (barcode: string) => {
+    const healthConsent = await hasConsent('health_data');
+    if (!healthConsent) {
+      setPendingBarcode(barcode);
+      setShowHealthConsent(true);
+      return;
+    }
+    await processBarcode(barcode);
+  };
+
   const handleClose = () => {
     router.back();
   };
@@ -35,6 +49,24 @@ export default function ScannerScreen() {
         onBarcodeScanned={handleBarcodeScanned}
         onClose={handleClose}
       />
+      {showHealthConsent && (
+        <HealthConsentModal
+          onAccept={async () => {
+            setShowHealthConsent(false);
+            if (pendingBarcode) {
+              const { saveConsents, getLocalConsents } = await import('../services/consent');
+              const current = await getLocalConsents();
+              await saveConsents({ ...current, health_data: true });
+              await processBarcode(pendingBarcode);
+              setPendingBarcode(null);
+            }
+          }}
+          onCancel={() => {
+            setShowHealthConsent(false);
+            setPendingBarcode(null);
+          }}
+        />
+      )}
     </View>
   );
 }
diff --git a/apps/frontend-mobile/components/CookieBanner.tsx b/apps/frontend-mobile/components/CookieBanner.tsx
new file mode 100644
index 0000000..aeceb2a
--- /dev/null
+++ b/apps/frontend-mobile/components/CookieBanner.tsx
@@ -0,0 +1,92 @@
+import React, { useState } from 'react';
+import { View, Text, TouchableOpacity, ScrollView, StyleSheet, Modal } from 'react-native';
+import { useThemeContext } from './ThemeProvider';
+import { useTranslation } from '../src/i18n';
+import { borderRadius } from '../constants/theme';
+
+interface CookieBannerProps {
+  onConsent: (consents: { essential: boolean; analytics: boolean; preferences: boolean; health_data: boolean }) => void;
+  onPrivacyPress: () => void;
+}
+
+export default function CookieBanner({ onConsent, onPrivacyPress }: CookieBannerProps) {
+  const { colors } = useThemeContext();
+  const { t } = useTranslation();
+  const [categories, setCategories] = useState({ analytics: false, preferences: false, health_data: false });
+
+  const toggleCategory = (cat: keyof typeof categories) => {
+    setCategories(prev => ({ ...prev, [cat]: !prev[cat] }));
+  };
+
+  const categoryKeys = ['analytics', 'preferences', 'health_data'] as const;
+
+  return (
+    <Modal transparent animationType="slide" visible>
+      <View style={styles.overlay}>
+        <View style={[styles.container, { backgroundColor: colors.card }]}>
+          <ScrollView showsVerticalScrollIndicator={false}>
+            <Text style={[styles.title, { color: colors.text }]}>{t('cookie_banner.title')}</Text>
+            <Text style={[styles.desc, { color: colors.textSecondary }]}>{t('cookie_banner.description')}</Text>
+            <View style={styles.categories}>
+              <View style={[styles.category, { backgroundColor: colors.background }]}>
+                <View style={styles.categoryInfo}>
+                  <Text style={[styles.categoryName, { color: colors.text }]}>{t('cookie_banner.category.essential')}</Text>
+                  <Text style={[styles.categoryDesc, { color: colors.textSecondary }]}>{t('cookie_banner.category.essential_desc')}</Text>
+                </View>
+                <View style={[styles.toggle, styles.toggleLocked, { backgroundColor: colors.primary }]}>
+                  <Text style={styles.toggleLabel}>ON</Text>
+                </View>
+              </View>
+              {categoryKeys.map(cat => (
+                <View key={cat} style={[styles.category, { backgroundColor: colors.background }]}>
+                  <View style={styles.categoryInfo}>
+                    <Text style={[styles.categoryName, { color: colors.text }]}>{t(`cookie_banner.category.${cat}`)}</Text>
+                    <Text style={[styles.categoryDesc, { color: colors.textSecondary }]}>{t(`cookie_banner.category.${cat}_desc`)}</Text>
+                  </View>
+                  <TouchableOpacity style={[styles.toggle, categories[cat] && { backgroundColor: colors.primary }]} onPress={() => toggleCategory(cat)} activeOpacity={0.7}>
+                    <View style={[styles.toggleThumb, categories[cat] && styles.toggleThumbOn]} />
+                  </TouchableOpacity>
+                </View>
+              ))}
+            </View>
+            <View style={styles.actions}>
+              <TouchableOpacity style={[styles.btn, { backgroundColor: colors.primary }]} onPress={() => onConsent({ essential: true, analytics: true, preferences: true, health_data: true })}>
+                <Text style={[styles.btnText, { color: colors.background }]}>{t('cookie_banner.accept_all')}</Text>
+              </TouchableOpacity>
+              <TouchableOpacity style={[styles.btn, { backgroundColor: colors.background, borderColor: colors.border, borderWidth: 1 }]} onPress={() => onConsent({ essential: true, analytics: false, preferences: false, health_data: false })}>
+                <Text style={[styles.btnText, { color: colors.text }]}>{t('cookie_banner.reject_optional')}</Text>
+              </TouchableOpacity>
+              <TouchableOpacity style={[styles.btn, { borderColor: colors.primary, borderWidth: 1 }]} onPress={() => onConsent({ essential: true, ...categories })}>
+                <Text style={[styles.btnText, { color: colors.primary }]}>{t('cookie_banner.save')}</Text>
+              </TouchableOpacity>
+            </View>
+            <TouchableOpacity onPress={onPrivacyPress}>
+              <Text style={[styles.moreInfo, { color: colors.textSecondary }]}>{t('cookie_banner.more_info')} →</Text>
+            </TouchableOpacity>
+          </ScrollView>
+        </View>
+      </View>
+    </Modal>
+  );
+}
+
+const styles = StyleSheet.create({
+  overlay: { flex: 1, backgroundColor: 'rgba(0,0,0,0.5)', justifyContent: 'flex-end' },
+  container: { borderTopLeftRadius: borderRadius.lg, borderTopRightRadius: borderRadius.lg, padding: 20, maxHeight: '85%' },
+  title: { fontSize: 18, fontWeight: '700', marginBottom: 8 },
+  desc: { fontSize: 14, lineHeight: 20, marginBottom: 16 },
+  categories: { gap: 10, marginBottom: 16 },
+  category: { flexDirection: 'row', alignItems: 'center', justifyContent: 'space-between', padding: 12, borderRadius: borderRadius.md, gap: 12 },
+  categoryInfo: { flex: 1, gap: 2 },
+  categoryName: { fontSize: 14, fontWeight: '600' },
+  categoryDesc: { fontSize: 12, lineHeight: 16 },
+  toggle: { width: 44, height: 24, borderRadius: 12, backgroundColor: '#ccc', justifyContent: 'center', alignItems: 'center', padding: 2 },
+  toggleLocked: { opacity: 0.6 },
+  toggleLabel: { fontSize: 9, fontWeight: '700', color: 'white' },
+  toggleThumb: { width: 20, height: 20, borderRadius: 10, backgroundColor: 'white', alignSelf: 'flex-start' },
+  toggleThumbOn: { alignSelf: 'flex-end' },
+  actions: { gap: 8, marginBottom: 12 },
+  btn: { paddingVertical: 12, borderRadius: 999, alignItems: 'center' },
+  btnText: { fontSize: 14, fontWeight: '600' },
+  moreInfo: { textAlign: 'center', fontSize: 12, textDecorationLine: 'underline' },
+});
diff --git a/apps/frontend-mobile/components/HealthConsentModal.tsx b/apps/frontend-mobile/components/HealthConsentModal.tsx
new file mode 100644
index 0000000..c4cad4a
--- /dev/null
+++ b/apps/frontend-mobile/components/HealthConsentModal.tsx
@@ -0,0 +1,44 @@
+import React from 'react';
+import { View, Text, TouchableOpacity, StyleSheet, Modal } from 'react-native';
+import { useThemeContext } from './ThemeProvider';
+import { useTranslation } from '../src/i18n';
+import { borderRadius } from '../constants/theme';
+
+interface HealthConsentModalProps {
+  onAccept: () => void;
+  onCancel: () => void;
+}
+
+export default function HealthConsentModal({ onAccept, onCancel }: HealthConsentModalProps) {
+  const { colors } = useThemeContext();
+  const { t } = useTranslation();
+
+  return (
+    <Modal transparent animationType="fade" visible>
+      <View style={styles.overlay}>
+        <View style={[styles.container, { backgroundColor: colors.card }]}>
+          <Text style={[styles.title, { color: colors.text }]}>{t('health_consent.title')}</Text>
+          <Text style={[styles.desc, { color: colors.textSecondary }]}>{t('health_consent.description')}</Text>
+          <View style={styles.actions}>
+            <TouchableOpacity style={[styles.btn, { backgroundColor: colors.primary }]} onPress={onAccept}>
+              <Text style={[styles.btnText, { color: colors.background }]}>{t('health_consent.accept')}</Text>
+            </TouchableOpacity>
+            <TouchableOpacity style={[styles.btn, { backgroundColor: 'transparent', borderWidth: 1, borderColor: colors.border }]} onPress={onCancel}>
+              <Text style={[styles.btnText, { color: colors.text }]}>{t('health_consent.cancel')}</Text>
+            </TouchableOpacity>
+          </View>
+        </View>
+      </View>
+    </Modal>
+  );
+}
+
+const styles = StyleSheet.create({
+  overlay: { flex: 1, backgroundColor: 'rgba(0,0,0,0.5)', justifyContent: 'center', alignItems: 'center', padding: 24 },
+  container: { borderRadius: borderRadius.lg, padding: 24, width: '100%', maxWidth: 340 },
+  title: { fontSize: 18, fontWeight: '700', marginBottom: 12 },
+  desc: { fontSize: 14, lineHeight: 20, marginBottom: 20 },
+  actions: { gap: 10 },
+  btn: { paddingVertical: 12, borderRadius: 999, alignItems: 'center' },
+  btnText: { fontSize: 14, fontWeight: '600' },
+});
diff --git a/apps/frontend-mobile/services/consent.ts b/apps/frontend-mobile/services/consent.ts
new file mode 100644
index 0000000..d72e365
--- /dev/null
+++ b/apps/frontend-mobile/services/consent.ts
@@ -0,0 +1,59 @@
+import * as SecureStore from 'expo-secure-store';
+import { api } from './api';
+
+const CONSENT_KEY = 'consents';
+
+export interface Consents {
+  essential: boolean;
+  analytics: boolean;
+  preferences: boolean;
+  health_data: boolean;
+}
+
+const DEFAULT_CONSENTS: Consents = {
+  essential: true,
+  analytics: false,
+  preferences: false,
+  health_data: false,
+};
+
+export async function getLocalConsents(): Promise<Consents> {
+  try {
+    const stored = await SecureStore.getItemAsync(CONSENT_KEY);
+    if (stored) return { ...DEFAULT_CONSENTS, ...JSON.parse(stored), essential: true };
+  } catch {}
+  return { ...DEFAULT_CONSENTS };
+}
+
+export async function setLocalConsents(consents: Consents): Promise<void> {
+  try { await SecureStore.setItemAsync(CONSENT_KEY, JSON.stringify(consents)); } catch {}
+}
+
+export async function hasConsentChoice(): Promise<boolean> {
+  try { return (await SecureStore.getItemAsync(CONSENT_KEY)) !== null; } catch { return false; }
+}
+
+export async function fetchServerConsents(): Promise<Consents | null> {
+  try {
+    const res = await api.get('/consents');
+    await setLocalConsents(res.data);
+    return res.data;
+  } catch { return null; }
+}
+
+export async function saveConsents(consents: Consents): Promise<Consents> {
+  const toSave = { ...consents, essential: true };
+  await setLocalConsents(toSave);
+  try {
+    const res = await api.put('/consents', {
+      categories: { analytics: toSave.analytics, preferences: toSave.preferences, health_data: toSave.health_data },
+    });
+    await setLocalConsents(res.data);
+    return res.data;
+  } catch { return toSave; }
+}
+
+export async function hasConsent(category: keyof Consents): Promise<boolean> {
+  const consents = await getLocalConsents();
+  return consents[category] === true;
+}
diff --git a/apps/frontend-mobile/src/i18n/locales/ca.js b/apps/frontend-mobile/src/i18n/locales/ca.js
index 72ba31f..92535d2 100644
--- a/apps/frontend-mobile/src/i18n/locales/ca.js
+++ b/apps/frontend-mobile/src/i18n/locales/ca.js
@@ -230,6 +230,31 @@ const ca = {
   'barcodeScanner.cancel': 'Cancel·lar',
   'barcodeScanner.scanningHint': 'Apunteu la càmera al codi de barres del medicament',
   'barcodeScanner.scanAgain': 'Escanejar de nou',
+
+  // Cookie Banner
+  'cookie_banner.title': 'Utilitzem cookies i dades personals',
+  'cookie_banner.description': 'Utilitzem cookies i tecnologies similars per millorar la teva experiència i, si ho permetes, escanejar la teva targeta sanitària.',
+  'cookie_banner.category.essential': 'Essencials',
+  'cookie_banner.category.essential_desc': 'Necessàries per al funcionament de l\'app.',
+  'cookie_banner.category.analytics': 'Analítica',
+  'cookie_banner.category.analytics_desc': 'Ens ajuden a millorar l\'app.',
+  'cookie_banner.category.preferences': 'Preferències',
+  'cookie_banner.category.preferences_desc': 'Recordar el teu idioma i tema.',
+  'cookie_banner.category.health_data': 'Dades de salut',
+  'cookie_banner.category.health_data_desc': 'Escaneig de targeta sanitària.',
+  'cookie_banner.accept_all': 'Acceptar tot',
+  'cookie_banner.reject_optional': 'Rebutjar',
+  'cookie_banner.save': 'Desar',
+  'cookie_banner.more_info': 'Més informació',
+  // Health Consent
+  'health_consent.title': 'Consentiment per a dades de salut',
+  'health_consent.description': 'Per escanejar la teva targeta sanitària (TSI), necessitem extreure el teu codi CIP i accedir a les teves receptes.',
+  'health_consent.accept': 'Acceptar i escanejar',
+  'health_consent.cancel': 'Cancel·lar',
+  // Privacy
+  'privacy.title': 'Política de Privacitat',
+  'privacy.last_updated': 'Última actualització: 26/08/2026',
+  'nav.privacy': 'Política de privacitat',
 };
 
 export default ca;
diff --git a/apps/frontend-mobile/src/i18n/locales/es.js b/apps/frontend-mobile/src/i18n/locales/es.js
index 36fc34f..5fe60c3 100644
--- a/apps/frontend-mobile/src/i18n/locales/es.js
+++ b/apps/frontend-mobile/src/i18n/locales/es.js
@@ -230,6 +230,31 @@ const es = {
   'barcodeScanner.cancel': 'Cancelar',
   'barcodeScanner.scanningHint': 'Apunta la cámara al código de barras del medicamento',
   'barcodeScanner.scanAgain': 'Escanear de nuevo',
+
+  // Cookie Banner
+  'cookie_banner.title': 'Utilizamos cookies y datos personales',
+  'cookie_banner.description': 'Utilizamos cookies y tecnologías similares para mejorar tu experiencia, analizar el uso de la app y, si lo permites, escanear tu tarjeta sanitaria.',
+  'cookie_banner.category.essential': 'Esenciales',
+  'cookie_banner.category.essential_desc': 'Necesarias para el funcionamiento de la app.',
+  'cookie_banner.category.analytics': 'Analítica',
+  'cookie_banner.category.analytics_desc': 'Nos ayudan a mejorar la app.',
+  'cookie_banner.category.preferences': 'Preferencias',
+  'cookie_banner.category.preferences_desc': 'Recordar tu idioma y tema.',
+  'cookie_banner.category.health_data': 'Datos de salud',
+  'cookie_banner.category.health_data_desc': 'Escaneo de tarjeta sanitaria.',
+  'cookie_banner.accept_all': 'Aceptar todo',
+  'cookie_banner.reject_optional': 'Rechazar',
+  'cookie_banner.save': 'Guardar',
+  'cookie_banner.more_info': 'Más información',
+  // Health Consent
+  'health_consent.title': 'Consentimiento para datos de salud',
+  'health_consent.description': 'Para escanear tu tarjeta sanitaria (TSI), necesitamos extraer tu código CIP y acceder a tus recetas.',
+  'health_consent.accept': 'Aceptar y escanear',
+  'health_consent.cancel': 'Cancelar',
+  // Privacy
+  'privacy.title': 'Política de Privacidad',
+  'privacy.last_updated': 'Última actualización: 26/08/2026',
+  'nav.privacy': 'Política de privacidad',
 };
 
 export default es;