Forces You to Install Unwanted Apps – Addition and subtraction math facts flash cards for kids (0-9,0-18,0-100) Review

We got this for our son, he pressed "Start" and immediately an ad came up that would not go away unless the featured app was installed. We closed this app and deleted it.
Review by ILoveATV on Addition and subtraction math facts flash cards for kids (0-9,0-18,0-100).