Good to see this thread!
I use ANKI and SuperMemo 18. They are apps generally used by Medical students and PhDs
It uses active recall and spaced repetition along with interleaved study
Both helped me a lot in clearing IRDAI and NABARD.
Do check it out!
For ANKI - Just check youtube, plenty of youtube tutorials to get startedSuper Memo 18 is relatively complex but once you get a hang of it, it'll become your Go to App for note-making and all learning
https://super-memo.com/supermemo18.html
Anki is too costly !!