Easy but has hidden charges

Is a nice easy app thats fun using cupcakes! However, would prompt me several times for a $1.99 upgrade in order to see my current data. I thought I would only have to pay the few once, apparently not. Will not continue to use and I feel duped.

CupcakeMamax3 about Breast Feeding Friend - simple aid for breastfeeding your baby, v2.7