I wish you were here when Bitcoin Faucets was a thing, i made significant Bitcoin with faucets, and it is a win win situation for the faucet owners and the miners, you get paid every hour into your wallet, it was that easy, but today Bitcoin worth over 100k, no single faucet can keep up, they are all out of business.

Avoid any app that promises free Bitcoin now, because to even reach the target to be able to withdraw will take forever, it is not worth it, if you feel like you are missing out on Bitcoin mining, and you don't have enough money for Big Asic miners you can look onto BTC USB miners, and start mining solo, it is a casino style of mining Bitcoin, as it can take forever to solve a single block, but electricity wise it takes few watts to run.

Look into Lucky miner or Canaan Avalon Nano 3.