Very frustrating!
This version is exteremly buggy and after tediously entering 38 notes to a new stack, I’m unalbe to view or edit these stack. At first I was only able to view the first few notes and then the app completely disabled this stack. After restaring the app few times, it got to work for a while and then got stuck again.
I also find the user interface quite unfriendly and counter-intuitive in multiple places. You need to learn how to use it. One may think that flash cards should be extremly easy to work with but this is definitely not the case.
Leo Thor about
Mental Case 2 — Flashcards for the Serious Student