1. Download the
APK file

2. Tap "Open" to
open the APK file

3. Tap "Settings"
to change settings

4. Allow installing
from unknown source

5. Tap "Install"
to continue

6. Google Play may
ask to scan

7. After scan
continue to install

8. Optional: Tap "Done",
to close popup

9. Optional: Revert
changed setting