What is Reddit's opinion of Memory Story Flashcards S Pen?

From 3.5 billion Reddit comments

Obviously, this is for Android, but I'm curious if you would be interested in something like this

I'm the author of that app; I'm considering writing a version of that for windows in the event that I eventually purchase a surface device...

I know I used to use such an app, I will go searching for it, hold this rope, I'm going in!

(Fordrus forgets to take the other end of the rope with him)

Haha! I found it almost immediately! I haven't used this in AGES, I will mess around with it for a few minutes and see if it really is what I remember it being. Hold this rope, I'm going in! :D

https://play.google.com/store/apps/details?id=bwr.memorystory&hl=en

(No, I do not remember it being 5 bucks, but I already own it and it is still installed on my old Note3, but I noticed while installing it on my Note7 that it was not initially free. :D )

2nd Edit: Of note, appears last update was a good while ago (2013) but it is running nicely on my Note7, though the "Draw only with S-pen" does not appear to register the Note7 S-pen with the additional pressure sensitivity as an S-pen. ;) You can't add images as near as I can tell, but it is a flashcards app, appears to have spaced repetition review options (and settings indicate notifications for them, as well, but it's hard to properly test Spaced repetition notification implementation without some time and all, you know? :D) Things appear to be well implemented, if fairly bare-bones and slightly dated. Still, this should technically fulfill the bill, even if $5 is a trifle expensive for an app (I think I cautiously offer a recommendation. I recall using this for some organic chemistry notes, way way back. :) )