Apps won't download (Error 491 or 921). Fix: Go to Settings > Accounts > Google → Remove your Google account → Reboot → Add your account back.
One of the last versions with a "Min: Android 4.4" requirement . 23.30.99 The final "stable" update released for KitKat devices . Google Play Store (Android 4.4+) APKs - APKMirror Google Play Store Apk For Android 4.4 2
Downloading APK files from random websites can be dangerous. Always use reputable sources like APKMirror (owned by Illogical Robot, a trusted name) or APKPure. Apps won't download (Error 491 or 921)