I'm currently using minergate.....but not on my phone. I could see this burning out my LG G6 in a hurry.

Also when i tried to use the app the first time, someone tried to access my account from Bulgaria(i'm in USA). The breech was caught by minergate thankfully, but because of this alone i would not recommend the android app.

Minergate seems to be fine, i really like that i can mine multiple coins on one software platform. Interface is easy, and there is ongoing development. I think it's a fine place to start mining crypto.

Soon ill have mined enough monero to buy a cloud mining contract, then i'll be able to comment more.