Consistently achieving good grades at university is difficult. Fortunately, there are apps that can help; here is my stack:
1. Anki
2. Obsidian
3. TickTick
4. Readwise
This is why ⬇️
Anki - in my opinion, the only tool you need to learn any topic - however, be careful not to lose the forest for the trees.
Obsidian - this is how I make sure I don't lose the forest for the trees - linking topics together using tags and zooming out (literally) using the map view to see where everything fits together.
TickTick - part calendar app, part to-do list, part habit tracker, with iOS, Mac, Windows and Android apps that work almost perfectly - what more do you need to plan your time?
Readwise - for the things you're trying to remember that don't necessarily fit anywhere particular, for example, a study tip that a friend gave you.