5 stars: Bought the paid version. I want to boost my speed at menta math and this seems like a good way to do it by practice. I just wanted to let the developer know, thank you for caring about privacy. There isnt enough of that around, keep at it.
5 stars: was really confused because I thought this app was called \
5 stars: brain training games like luminosity have no science backing up the claims that they boost intelligence. Instead of trying to become vaguely smarter, focus on concrete skills like mental math. this app is addictive and designed to get you used to calculating only the last digit, which for some may be a turn off but I see it as a beginning step. once you can master calculations you practice holding multiple numbers at once.
4 stars: I like the simple platform, fun mental workout; however, $7.99 is on the pricey side to buy the full version.
5 stars: This is free but it is brilliant. Within 10 minutes of using I paid the premium fee and it is well worth it. Thanks for this fab workout.
5 stars: This game is elegant and simple (the math, maybe not so much). I love that it's free, but there's an option to support the developer if you wish. I recommend this to everyone who wants to get faster with mental math or would like a challenge.
5 stars: Breaks the rust off of those skills you learned long ago. Worth doing to maintain the edge.
5 stars: great experience ❤️ awesome devloping team , will continue to support their efforts ! chee...