Alsalamu alaykum. Jazaakum allahu kheir for all your work to benefit people. May allah reward you generously for all of your efforts.

There is one thing stopping me from using tarteel to test myself on memorization: When reciting from memory without any access to any written ayaat, I dont even know the page layout. However, when using Tarteel to test myself, I am able to see the ayaat I have already recited (in hidden mode), and this is sort of too much help (for example, if there is one ayah left in the page, I can see its length and this kind of gives it away, or just knowing the ayah’s position in the page gives it away too). I would love if there is an option to completely hide everything during test mode (even ayah markers or already recited ayah) and for example, only show like a red light in the middle of the screen which lights up to indicate an error I have made.

Jazaakum allahu kheir