Comment by throwaway9d0291

Some Anki-like alternatives that people may like and not have seen (mostly focused on learning languages):

- Memrise - https://www.memrise.com/ - Has a very extensive selection of decks for language learning

- Supermemo - https://www.supermemo.com/en - Has a (disputed) claim that its algorithm beats Anki, various pre-made decks

- Drops - https://languagedrops.com/ - Mobile-only, has a higher reliance on pictures and audio over written translations.