I have a number of recipes as simple text files on my (Linux-) PC, and at the moment I copy them to my phone via WeChat, which is handy in the kitchen. I'm thinking about writing my own, simple app, something with a SQLite database, an interface to view, create and edit recipes, ingredient list, perhaps a shopping list as well.
But before I do that, I would like to know if there are any apps out there. No pictures or network should be needed, and I really don't want to look at advertising; I don't mind paying a modest fee. From what I have been able to find so far, they all have adverts, in-app purchases or daft recommendations - and in some cases they don't allow you to enter your own recipes.
I found one promising one, called Bites, on F-Droid, but it doesn't seem to do anything and there are no instructions. Any suggestions?