This app was mentioned in 1 comment, with an average of 1.00 upvote
I'm sorry I don't have more suggestions for you, but I published an app a while ago called Math Animals - Addition!, which lets kids practice simple addition (4 + 7 = 11, etc.). As the kids play, they unlock animals, which they can give names to. It's only in English, but most of the game is numbers, so try it if you want. Good luck!