Preferably lesser known but game-changing apps that are able to be bought one-time and put all others to shame.
To help clarify your thinking, which apps have produced such an outrageous level of value (regardless of one-time cost) to the extent you believe it should be #1 in its category, not necessarily #1 app ever.
We’ll do a seperate thread for Mac, Windows, Linux, Android, etc but let’s stick to iOS for this one. Thanks Lemmings!
So I’m using a FOSS spaced repetition app alternative to Anki called Memoet. Self hosted and it does everything I want. Might I recommend using chat gpt to help make cards? You can easily generate tables that can be copy pasted into a csv which (I’m assuming anki) can be imported as cards
I use to use Java and Hashmaps with arrays and such.