Bitcoin Miner is a Game not a real mining application. In fact, while playing the game you collect some sats. Those are the sats I am speaking about.

But you are right ! It would take a long time to earn 1 sat in real mining... :-) That's why I really like that way of earning sats... And believe me they becomes real when you transfer them from the Bitcoin Miner game app to the zebegee wallet and then to an exchange...