I’m using Osmand. I think this is the most advanced one. If there is a better one, I can get your recommendations for Android.

This is a start. It will be better.

WhatsApp for me. I hate it but in my country all people use it.

Source of information?

You keep reading because reading is a reflex. If you can’t get your attention, you’ll keep reading, but you’ll be contemplating in your imagination. This is normal.