diff --git a/App.tsx b/App.tsx
index d4b14cb..4108164 100644
--- a/App.tsx
+++ b/App.tsx
@@ -1,5 +1,5 @@
 import React, {useState, useCallback, useEffect} from 'react';
-import {BackHandler} from 'react-native';
+import {Alert, BackHandler} from 'react-native';
 import HomeScreen from './src/screens/HomeScreen';
 import ScanScreen from './src/screens/ScanScreen';
 import ReviewScreen from './src/screens/ReviewScreen';
@@ -38,6 +38,13 @@ export default function App() {
     [createDocument],
   );
 
+  const confirmDiscardReview = useCallback(() => {
+    Alert.alert('Discard scan?', 'Going back will discard all scanned pages.', [
+      {text: 'Stay', style: 'cancel'},
+      {text: 'Discard', style: 'destructive', onPress: goHome},
+    ]);
+  }, [goHome]);
+
   const handleView = useCallback((doc: ScannedDocument) => {
     setViewingDoc(doc);
     setScreen('viewer');
@@ -46,11 +53,22 @@ export default function App() {
   useEffect(() => {
     if (screen === 'home') return;
     const sub = BackHandler.addEventListener('hardwareBackPress', () => {
-      goHome();
-      return true;
+      if (screen === 'scan') {
+        goHome();
+        return true;
+      }
+      if (screen === 'review') {
+        confirmDiscardReview();
+        return true;
+      }
+      if (screen === 'viewer') {
+        goHome();
+        return true;
+      }
+      return false;
     });
     return () => sub.remove();
-  }, [screen, goHome]);
+  }, [screen, goHome, confirmDiscardReview]);
 
   const handleRenameFromViewer = useCallback(
     (name: string) => {
@@ -74,7 +92,7 @@ export default function App() {
         pages={pendingPages}
         onSave={handleSaveDocument}
         onAddMore={() => setScreen('scan')}
-        onCancel={goHome}
+        onCancel={confirmDiscardReview}
       />
     );
   }
diff --git a/src/screens/ReviewScreen.tsx b/src/screens/ReviewScreen.tsx
index 15e33c4..b4b8194 100644
--- a/src/screens/ReviewScreen.tsx
+++ b/src/screens/ReviewScreen.tsx
@@ -8,6 +8,7 @@ import {
   StyleSheet,
   Dimensions,
   StatusBar,
+  Alert,
 } from 'react-native';
 import {ScannedPage, FilterMode} from '../types';
 import FilterPicker from '../components/FilterPicker';
diff --git a/src/screens/ScanScreen.tsx b/src/screens/ScanScreen.tsx
index 131471f..a681c59 100644
--- a/src/screens/ScanScreen.tsx
+++ b/src/screens/ScanScreen.tsx
@@ -2,7 +2,6 @@ import React, {useState, useRef, useCallback, useEffect} from 'react';
 import {
   View,
   Text,
-  TouchableOpacity,
   StyleSheet,
   Alert,
   ActivityIndicator,
@@ -34,7 +33,6 @@ async function copyToPermanent(tempUri: string): Promise<string> {
 export default function ScanScreen({onComplete, onCancel}: Props) {
   const t = useTheme();
   const [scanning, setScanning] = useState(false);
-  const [pageCount, setPageCount] = useState(0);
   const pagesRef = useRef<ScannedPage[]>([]);
 
   const scan = useCallback(async () => {
@@ -69,17 +67,8 @@ export default function ScanScreen({onComplete, onCancel}: Props) {
       }));
 
       pagesRef.current = [...pagesRef.current, ...newPages];
-      setPageCount(pagesRef.current.length);
       setScanning(false);
-
-      Alert.alert(
-        `${pagesRef.current.length} page${pagesRef.current.length !== 1 ? 's' : ''} scanned`,
-        'Add more pages or finish?',
-        [
-          {text: 'Add More', onPress: scan},
-          {text: 'Finish', style: 'default', onPress: () => onComplete(pagesRef.current)},
-        ],
-      );
+      onComplete(pagesRef.current);
     } catch (err: any) {
       setScanning(false);
       Alert.alert('Scan Error', err?.message ?? 'Could not scan document.');
@@ -97,21 +86,7 @@ export default function ScanScreen({onComplete, onCancel}: Props) {
       {scanning && (
         <View style={styles.center}>
           <ActivityIndicator size="large" color={t.accent} />
-          <Text style={[styles.hint, {color: t.textSecondary}]}>Opening camera…</Text>
-        </View>
-      )}
-      {!scanning && pageCount > 0 && (
-        <View style={styles.center}>
-          <Text style={[styles.count, {color: t.text}]}>{pageCount}</Text>
-          <Text style={[styles.pagesLabel, {color: t.textSecondary}]}>pages ready</Text>
-          <View style={styles.actions}>
-            <TouchableOpacity style={[styles.btnSecondary, {borderColor: t.accent}]} onPress={scan}>
-              <Text style={[styles.btnSecondaryText, {color: t.accent}]}>Add More</Text>
-            </TouchableOpacity>
-            <TouchableOpacity style={styles.btnPrimary} onPress={() => onComplete(pagesRef.current)}>
-              <Text style={styles.btnPrimaryText}>Finish</Text>
-            </TouchableOpacity>
-          </View>
+          <Text style={[styles.hint, {color: t.textSecondary}]}>Processing pages…</Text>
         </View>
       )}
     </View>
@@ -122,21 +97,4 @@ const styles = StyleSheet.create({
   container: {flex: 1},
   center: {flex: 1, alignItems: 'center', justifyContent: 'center', gap: 12},
   hint: {fontSize: 15, marginTop: 12},
-  count: {fontSize: 72, fontWeight: '700'},
-  pagesLabel: {fontSize: 18},
-  actions: {flexDirection: 'row', gap: 16, marginTop: 24},
-  btnPrimary: {
-    backgroundColor: '#007AFF',
-    paddingHorizontal: 32,
-    paddingVertical: 14,
-    borderRadius: 28,
-  },
-  btnPrimaryText: {color: '#fff', fontSize: 16, fontWeight: '600'},
-  btnSecondary: {
-    borderWidth: 1,
-    paddingHorizontal: 32,
-    paddingVertical: 14,
-    borderRadius: 28,
-  },
-  btnSecondaryText: {fontSize: 16, fontWeight: '600'},
 });
diff --git a/src/screens/ViewerScreen.tsx b/src/screens/ViewerScreen.tsx
index 85b68d4..09232a9 100644
--- a/src/screens/ViewerScreen.tsx
+++ b/src/screens/ViewerScreen.tsx
@@ -140,40 +140,49 @@ export default function ViewerScreen({document, onBack, onDelete, onRename}: Pro
         </TouchableOpacity>
       </View>
 
-      {generating && (
+{generating && (
         <View style={styles.loadingOverlay}>
           <ActivityIndicator size="large" color="#fff" />
           <Text style={styles.loadingText}>Generating PDF…</Text>
         </View>
       )}
 
-      <Modal visible={renaming} transparent animationType="fade">
-        <View style={styles.modalBg}>
-          <View style={[styles.modalBox, {backgroundColor: t.surface}]}>
-            <Text style={[styles.modalTitle, {color: t.text}]}>Rename Document</Text>
-            <TextInput
-              style={[styles.modalInput, {backgroundColor: t.bg, color: t.text, borderColor: t.border}]}
-              value={renameText}
-              onChangeText={setRenameText}
-              autoFocus
-              selectTextOnFocus
-              placeholderTextColor={t.textSecondary}
-            />
-            <View style={styles.modalActions}>
-              <TouchableOpacity onPress={() => setRenaming(false)} style={styles.modalBtn}>
-                <Text style={[styles.modalCancel, {color: t.textSecondary}]}>Cancel</Text>
-              </TouchableOpacity>
-              <TouchableOpacity
-                onPress={() => {
-                  if (renameText.trim()) onRename(renameText.trim());
-                  setRenaming(false);
-                }}
-                style={styles.modalBtn}>
-                <Text style={[styles.modalConfirm, {color: t.accent}]}>Rename</Text>
-              </TouchableOpacity>
+      <Modal
+        visible={renaming}
+        transparent
+        animationType="fade"
+        onRequestClose={() => setRenaming(false)}>
+        <TouchableOpacity
+          style={styles.modalBg}
+          activeOpacity={1}
+          onPress={() => setRenaming(false)}>
+          <TouchableOpacity activeOpacity={1} onPress={() => {}}>
+            <View style={[styles.modalBox, {backgroundColor: t.surface}]}>
+              <Text style={[styles.modalTitle, {color: t.text}]}>Rename Document</Text>
+              <TextInput
+                style={[styles.modalInput, {backgroundColor: t.bg, color: t.text, borderColor: t.border}]}
+                value={renameText}
+                onChangeText={setRenameText}
+                autoFocus
+                selectTextOnFocus
+                placeholderTextColor={t.textSecondary}
+              />
+              <View style={styles.modalActions}>
+                <TouchableOpacity onPress={() => setRenaming(false)} style={styles.modalBtn}>
+                  <Text style={[styles.modalCancel, {color: t.danger}]}>Cancel</Text>
+                </TouchableOpacity>
+                <TouchableOpacity
+                  onPress={() => {
+                    if (renameText.trim()) onRename(renameText.trim());
+                    setRenaming(false);
+                  }}
+                  style={styles.modalBtn}>
+                  <Text style={[styles.modalConfirm, {color: t.accent}]}>Rename</Text>
+                </TouchableOpacity>
+              </View>
             </View>
-          </View>
-        </View>
+          </TouchableOpacity>
+        </TouchableOpacity>
       </Modal>
     </View>
   );