Please integrate the features of both apps into one system. This can be done with a 'memorisation mode' to activate the particular features of the Memoriser app (i.e., memorisation status, notes, etc.), and then the default 'Reader' mode to remove these extra features in favour of taking written notes, reading the tafsir, or bookmarking ayahs. The apps have very strong overlap and their base features are very similar, so I don't think there is any reason to separate the two.

Furthermore, this would make the memorisation features available on iOS as well.

May Allah grant you all success and ease in your affairs.