Now I will tell you I downloaded quiet a few apps that claim to give you money if you play their games. But I realized something after playing one app called Kitty Screws for hours to in hopes to make some free cash, that there are certain quests you have to complete in order to recieve such free cash. For one it requires you to pass a certain level to cash out and after passing such level it required a certain amount to be made before cashing said "free" money. But once I read the reviews on said app I realize the app was a scam. If you want to make some excess money playing games on your phone there are a ton on Google Play and the Apple app store. One I defiently recommend is MistPlay it requires doing certain quest through app and not in the games it's self. They will pay you in giftcards and through Paypal. Depending on your method of payment for your hard work it can take a bit to get and some times right away.

Apps that work
1.Mistplay: works the best when it comes to legit payments.
2.JustPlay: no withdraw limit on this app. All you have to do is download their suggested games and play a few minutes a day.