The game itself is fun, but sooooo many ads, and you do not actually win any money. It is the same as all the other win free money games, you need to have a certain amount before you can cash out, and any cash rewards earned are given in 0.00001 of a cent.
Bingo Cash is a legitimate gaming app that offers a fun experience that offers real money prizes in cash games. It provides free practice rounds and has an engaging community. However, it has limited earning potential, and you may need to stake your own money to play.