Won’t work on two devices – Multiplication Math Flashcards Review

I paid for this app on my iPhone and it automatically downloaded to my iPad. My son is unable to use the full version that I paid for on the iPad, though. It only works on my phone. Very frustrating to have it keep asking for another $2.99 whe I have already paid it. No idea how to c tact someone to fix it. I wish I had bought another app!
Review by stacyslloyd on Multiplication Math Flashcards.