Constant prompts to log in to iTunes Store
My wife and I each have an iPhone 6, both on iOS 10. When we initially set up her phone, we used my iTunes account to enable some things such as app downloads. However, we soon discovered that she was getting alerts intended for me. So we created an iTunes account for her and (we think) switched everything we could find on her phone over to it.
Now, however, she continues to get near-constant prompts to log in to the iTunes Store. All I can think is, if some of her apps were downloaded with my iTunes account, does the iPhone want my iTunes login to be active on it in order for her to continue using these apps? Do we need to delete these apps and download them again using her iTunes account? Any other general suggestions on getting this resolved?