: If prompted, go to your device's settings > security, and enable "Unknown Sources" or "Install unknown apps" (the exact steps might vary based on your Android version).
Only if you use the “Transfer Chats to Android” feature (requires both devices on same Wi-Fi). However, that feature often fails between Android 13 and KitKat. Your safest bet is using on the new phone, then restoring on the KitKat device—but the backup format may be incompatible. Expect some loss. whatsapp para android 442 install