Nag screen
Such as shame. This could be is a decent and useful app. My problem with it is, the nag screen that keeps popping up inviting me to buy more lesson content, usually in the middle of an exercise. If this was a free or trial app I would have no problem with this, but I paid $3.99 for it. It’s basically hobbled unless I want to pay more for it, which is not going to happen. Apple needs to do a better job of policing what they approve for the App Store. There’s a big difference between buying an App that offers in-app purchases and one that requires it.
