I've been on apps for years and I think I've only ever seen 10 women or less with hair like this. It's really, really rare - like someone else said, they're not usually on apps.
The constants I've seen with these women:
- They live very alternative lives. Super nerds or artists, practicing witchcraft, going to ren faires or living kinky lifestyles. Or heavy metal music lovers, deep in the metal lifestyle. Often they have mental challenges so a normal 9-5 life is difficult for them so they have alternate ways to make a living.
- They're devoutly religious or very spiritual and having long hair is part of that, usually as a way to show off femininity or health.
If any of these qualities fit you, you have a high chance of eventually finding someone. But it still takes a lot of work.