This seems like a well made money maker app. When you run the numbers though, it's the opposite. You have to initiate the mining process which lasts 3 hours at a rate of 2000 h/s. Then you have to initiate the mining process again. You can do this 8 times per day, assuming you set an alarm to wake up in the middle of the night so you don't miss the next opportunity to start again at 3 hours. This will earn you 8 cents per day, so at a cost of 25.99 per year, you actually lose a couple of bucks.