When you sign up for mobile mining electronium is the most profitable coin to mine on mobile, and faster to mine etn from mobile than on most computers. Currently miners are mining on average 10 coins a day. If etn reaches predictions to 1$ by end of this year, that will be worth alot of mining at no expense of data or any others hidden costs. To download just download the app from google play and then run and register. Please dont forget to use my referral code 