You’re downloading Snaptube APK for Android…
Note: If Install Blocked – Click “Settings” > Turn on “Allow from this Source” and go back.
“Blocked by Play Protect”
Because Snaptube is a third-party app (i.e. outside official Google Play Store), the android security prompts a warning dialog box. However the app is completely safe to use and virus free. Click on Details (“v“) button and press “INSTALL ANYWAYS” to proceed.