If you see this, you’ve downloaded an APK built for a newer Android API level (minimum API 21+ for Lollipop). Double-check that the APK is specifically tagged as Android 4.4+ or API 19+ .
: Older devices struggle with full storage. Go to Settings > Apps > Facebook Lite > Clear Cache to keep it running smoothly. Facebook For Android 4.4.2
Facebook Messenger dropped support for KitKat even earlier than the main app. The last working Messenger for 4.4.2 is . However, it is painfully slow. If you see this, you’ve downloaded an APK