Simon Circles

I'll improve my rating when yahs fix that

It starts up and then instantly closes

Hahaha a very fun game to play a great game if you want a challenge to test your brain and your reaction timing XD HAVE FUN..

It doesn't work. Nothing happens when I chose 'play' or 'practice'.

Game horrible satan devil's game

I wish it had like power ups or something to make it more interesting. But I still love it.

I'd give 5 stars if you make an option to hide the numbers, in both modes.

My high score is 1049. And no cheating. Not sure how people can cheat on this game.

i got 159 but it wouldnt save.

I love this game its fun and doesn't get me bored

As a medical student I'm forced to study literally hundreds upon hundreds of pages of theory work every day. Obviously this can be quite daunting and extremely mentally taxing. I find playing this game when feeling mentally tired is a great way to rejuvenate the brain as the game basically forces you to a) concentrate and b) empty tour mind in order to get a high score.

This game always is a turn to when I am bored. Fun to play and love trying to beat my best!.

Cute game with an interesting and different concept.

i got 159 but it wouldnt save.

I love this app! So much fun. My record is 476 anyone got higher?

It's a pretty fun game, just wish there was more to it, maybe some challenges...

As someone mentioned, the game is addictively fun, but sometimes the scores don't save once you exit the game.

Cute game with an interesting and different concept.

Simple fun and never ending challenge

This is a very fun and addictive game.

I love this game its fun and doesn't get me bored

Fun game loved it

A bit hard to begin with

I usually regret downloading apps but this one is Worth it

Cant stop playing it.

In love

If you like fun games that are challenging then I recommend this game for you

Cool app ever...... I found that it is a useful app to awake me from being asleep lol thanks!

So fun and addicting and really makes me focus which is hard because I have adhd I love it

My favorite thing about this game is that it really requires you to stay focused. Just mindlessly attentive for minutes on end to get a good score.

Awesome game! Simple, yet has been able to hold my attention for weeks. The only suggestion I have is making the practice button disabled for like a quarter of a second after a game is played. I often accidentally press it after "losing". The ability to pay a dollar or two to get rid of the adds would also be awesome.

It has helped me understand the degenerative effect sleep deprevation has on coordination, speed and accuracy.

Once you start the game you can not get it to quit.

Why is there no settings screen? Why can't I leave de pratice mode by pressing back? When I enter practice mode I can't find a way to go back to the main menu, kinda ridiculous. The game itself is fun and addicting but I can only give it 3 stars because of these issues, unfortunate.

My brothers math teacher said it would help with math and it does!

Obviously, this game is about challengeing yourself and getting better and better scores. It doesn't always save your high score, so there's the whole point of the game, lost. Oh well, still fun.

I have yet to be bored of this game and I'm always trying to beat my previous record. Very fun and addicting, a must have game.

This game always is a turn to when I am bored. Fun to play and love trying to beat my best!.

I can't stop trying to beat my high score. And the trash talk makes it fun. Lol