hytext app won't work after restore – Hytexts eBook Store Review

Hytexts is one of my favorites ebook stores because of epub format. I just got an iPad mini 1 with iOS 9.3.4 and plan to use it as ebook reader (instead of reading on iPhone). However, hytexts is just unusable on iPad mini 1. Everytime I tap the book I was reading, it will not remember last reading page and always go to first page of the book. Now, I just found out that it is because of I restore the device from backup and this app won't work after restore. So, I have to delete the app, install the app and re-download all the books again to make it works.
Review by Rakkiat on Hytexts eBook Store.