Elmohafez TV, developed by Hossam Hammady, is a truly useful Qur’an app, that is if you want to use such an app to aid you in memorizing the Qur’an. The icing on the cake — at least for me — is its incorporation of the Qira’āt al-‘Ashr, or the 10 Variant Recitations of the Qur’an. It features a couple of useful tools:  a voice recorder. This allows you to record yourself reciting and compare it to the mushaf. If you get it correct, you get to mark that section/verse completed, which leads to  ledger function that tells you your progress in memorizing that chapter, or juz’, in percentages. The app also fearures a number of reciters in the variant recitations as well. May Allah bless the app’s creator(s).
Hat tip to Abdl-Karim.