works great, until you have to buy it

I’ve had this calculator for a while now, and I’ve got no complaints about its function. However, while using it this morning, it suddenly decided that my calculation time was up, and I can only continue using if I buy it! I’ve looked everywhere and the only thing it says about in-app purchases is to unlock all features & have no pop-ups. NOWHERE does it say you only get a specific number of calculations before buying. I think that’s very misleading! Had I known I had to buy it, I would’ve gotten a different app from the beginning. I know it is only $2.99, but it’s the idea of being mislead that I find irritating!

Muireall about Calculator Pro • Topbar App