Purchase doesn't work
I purchased the app and the app will not allow what I paid for. Stays in trial mode. Won't unlock all the levels like the purchase says it will. But they took my money.Sdr lrk imk
Charge my account but no app
I purchase this app for my daughter it took my money saying its paid already but does not want to open up. I see my bank statement and it says purchase from I tunes $2.17 very upset cause I pay for this app and my daughter is getting nothing pls fix this problem it's not fair.
Very upsetLadyv250
Pay pay pay
I don't think this app is good and it just wants money.....make it betterMaryNissim
Grandma
Fun for kids while learningRmvjm
Mr. 4K
Nice program for differentiating. Start with just numbers, mix in some functions, and adjust the multiplier.Mr. 4K
Excellent!
Nice oneDeejayR0X
