Mela is definitely nice. I especially like the typography layout/design for recipe ingredients and instructions.

It unfortunately falls short when you want to do things like share a collection of cocktail recipes with your friends while also sharing a book of family recipes with your extended family. With Mela everyone you add can see and edit everything.

Umami can create separately shared recipe books as well as grocery lists (which are useful when going on a trip or camping with friends).

Beyond that, Umami has Chrome/Firefox extensions to import recipes while you browse. Also you don’t have to sign in to use it, not sure where you saw that?

Before paying for Mela, I’d recommend trying Umami. It’s free and has better family sharing features.