You can not mine cryptocurrencies easily with a simple apps, those apps are all scam and they wont give you what they promised!
To mine BTC you need either a GPU (graphics processing unit) or an application-specific integrated circuit (ASIC) in order to set up a mining rig. And this is not something that an app will offer to you for free!
Be aware of Scams.
You're not going to be able to mine much/or get an award with a gpu mining btc. You could mine a few other altcoins though with that.
ASICs are the only way to get a good reward from btc and you'll need cheap electricity or a trusted host to run and maintain them for you.