The best mining for now is using hardware of gpu, but the app of tablet is possible because of technology of bitcoins, many case in mining is use gpu not popular an apps to mining btc. in next next year no matter what happen the technology of mining is possible an app and not to gpu too.
Here we go, once again,...
No, it's very, very unwise to mine bitcoins with your GPU, your CPU, your phone's GPU, your phone's CPU, a tablet, a supercomputer, your fridge, pen and paper,...
There are devices being produced that have the sole purpose of creating sha256d hashes, they're called ASIC's (they should be called sha256d ASIC's, since the term ASIC in itself is also applicable in other branches).
These ASIC's are so efficient, they pushed the difficulty so high it's impossible to make any money mining anything but the latest gen ASIC.
Don't belief me, here are the calculations for some CPU/GPU's =>
https://www.mocacinno.com/nonspecialisedmininghardware.phpIdk but i found it on my facebook home, he just use unused tab for mine.. and it's free he said
This, i can believe... This is not bitcoin mining, but altcoin mining. Monero is known to be CPU minable, however, personally, i wouldn't risk breaking my phone for a couple of bucks a month.