Show HN: Vocabify – Remember the interesting words you come across (vocabifyapp.com)

I guess this is most useful for people learning a foreign language?

Looks well done.

I'm always reading articles about fields outside my expertise, so I spend a lot of time doing quick lookups for terms I don't know. This looks promising, but I think you need to offer a sign-in method that doesn't rely on a social network.

I'm Learning English, hope it helps.