Cryptocurrency Mining on Android Smartphone: CryptoTab Browser
Cryptotab Browser Mobile
Cryptotab Browser is also available on playstore and applestore. Download using the same link: https://cryptobrowser.site/en/promo/summer19/2016027
Withdrawing
I have mined for a while and succeeded in withdrawing bitcoin to both my exchange wallet and personal wallet, also that I've tried withdrawing from both PC and Smarphone version of the software. It works, meaning that it is legitimate.