Yes, iBrainy Maths is completely free and it doesn't have any in-app purchases or subscriptions.
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iBrainy Maths is free.
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The problems are timed. Doesn't give enough time in my opinion. He is 4 so he only has enough time to do like 2 problems and even though he gets them right, he still gets a sad face I'm guessing because he didn't do enough problems.
I love it when you have to add it helps you
like the fact that theres a time element to it. after playing this for a while you will be quicker at adding. good job
