How would mining on mobile phone really be possible? Hardware speaking it is impossible. If anyone promise you a fantastic mining experience on your mobile, you should know instantly that you are been scammed whether you agree or not. They may mine for you and send the minng reward to your mobile screen UI that doesn't mean it's your mobile phone that is mining!
For example Electroneum is developing a mobile miner which is already in beta.
But this mobile miner isn't using your hardware to mine - it's just simulated mining so your hardware isn't fully occupied the whole time and dies within a short amount of time.
The hashrate/reward is scaled up as you wouldn't get anything if you'd do actual mining.
Thats the problem. You can put your important mobile phone in dangerous because the phone will be over heat.
I dont think this is good ide. With small reward i will not put my phone in dangerous.