AnkiDroid

Anki is a spaced repetition app. For most of my life I thought that I was stupid because I had terrible problems with memorizing things. It turns out that I was using the wrong technique. Spaced repetition is a simple mechanism that makes sure that you don’t repeat things that you already remember, but only those things that you have problems remembering. I’m using Anki purely on my phone, but adding new words is much easier to do on a computer.