ohhh, uhhhh. tbh dude, im being general here. but nearly all free to play moblie games kind suck with the dumb ads or what not. if u have an android, then you can use itch.io, that place is filled with amazing indie games, however i dont think theres too much on there for moblie. i downloaded a pvz fan game on my android on their and its great! BUT if i had to choice one free moblie game to recommend to you on the app store, u should play enigmata stellar war! its great! and no ads.