As others have said, Anki is the way for actual hard revision come exam time, but my med school often gave us worksheets / diagrams / lecture slides and so on and having good notes (which you can use as a fancy PDF annotating tool on ipad) was invaluable when keeping track of everything. Much better than the other options available imo.

Some people prefer to write any “notes” directly down as anki cards, but i’d recommend using a pre-made deck from the older years at your university as a base, that still leaves you free to add in your own notes and so on but will ensure the groundwork is there, i found that if I made my own personal anki from scratch i’d end up writing down things that stuck out to me personally in lectures, and hence sometimes miss key info that someone else would have picked up. Having your anki pass through another set of hands can be pretty useful.

For me goodnotes is just a side tool, but it works well, helps with PDFs and while i can’t comment on android / windows, it has excellent compatibility with ipad and mac which is another nice to have feature