It is impossible to mine in mobile phone because the components of the mobile phone is not enough to solve the mathematical problems that bitcoin has and get some rewards. I think that those applications that promoting that they can mine in mobile phones are sort of virus or malwares that will infect and stole some data on your phone.
as of now ive never ever seen any phone that are survive for in some experiments of if this may have the chance to mine for , so basically or in other word instead of wasting time to have that on phone then if there should be that then check for the price of it cause i think there is no other option of taking your opportunity to have pc to mine for.