Concentrate
I don’t think it’s suitable for me and children like me.I think only adults should have it.
Very useful app !
Like it very much
Great
Focus strength!
Concentrate
I love this. I played until my arms were numb.
Perfect
I love it, please release this game for windows phone.
Perfect
Does the job very well
Fun but difficult
Randomly typed in the word and couldn't believe there's a game called 'concentrate' lol, looks easy and fun. But little difficult.
Awesome !!!
I like this app because it's just colors keep in mind ..
Simple, functional. Recommend.
This app is simple, clean, and functional. It does what it was advertised to do. Maybe if there were some variations or more options it could be better; regardless, I recommend this app.
Excellent program
Thanks!
Awesome
This is a fun game to desires pace your mind and think of nothing.
Concentrate!!!!
Not to bad funny to watch other people play
