Knitting app in the making, would you find it useful?

Apologies if this post is against the rules. I've made an app for knitting. The purpose is to use it as an inventory for all your yarn and needles and to have a list of projects, both current and completed. One can add images, have a counter on various parts of the project and add your own pdfs if you want.

It's very straightforward, no fancy animations, colours or popups, and it's not trying to get in your way.

I'm curious if there is an interest for such an app or if you would be so kind to tell me what functions you might want to add (or remove). I'm thinking of adding recipes as well, but haven't so far.

Thanks in advance.