Dont buy. This is the most pathetic scam app I have experienced, let me explain, I purchased this app expecting nothing at ₹100/-, their minimum payout is 0.00001 BTC which translates to roughly ₹15 to ₹20 maybe, need to restart mining every 3 hours, I religiously restarted mining on this app every 3-4 hours and got my first payout in about a month, since then it's been 6 months and I have at least spent 4 months of it mining on the app and am still at 0.00000679 BTC and yet to reach payout.