[RELEASED] Need feedback for my Android Math game

Good day! So I am a full-time developer in a company and I am doing simple casual games for Android in my free time, cause I don't want to waste time doing other nonsense things. So I wanted feedback for my game Simple Math Challenge.

Check this video:

You can download it here:
https://play.google.com/store/apps/details?id=com.HellModeGames.SimpleMathChallenge

 

Even though I am a math lover and believe that this game could speed my rate of thinking, I don't really believe this game would attract a large audience. The game was decently done, but there isn't really an audience for educational games.

The only feedback I can give is to make the math problems more challenging so mental math skills can develop, like 17*24 and 372/12. With an educational game, don't expect a large audience.

 

Thank you for your feedback and your suggestion. I'm planning on updating this game and will be adding your idea! Thank you again!