Where can I download Android apps?

[Kira766]

Where can I download Android apps?

[Yaridovich]

You can download no-charge*and paid apps from Google Play on your Android phone. We recommend that you get apps from Google Play, but you can also get them from other sources.

Your phone*has a security setting (Google Play Protect) that checks for potentially harmful apps, warns you, and removes apps if necessary.
Some of these steps work only on Android 8.0 and up.

And here are some extra things you need to know
https://support.google.com/android/answer/2812853