I use Flo, Ovia, and Period Tracker.
I’m irregular and none of these apps are ever consistent with it’s when I should be ovulating or not 😭 so I just track the damn thing
Flo. They have an anonymous community section about various topics. There is only support there 100%
Clue. I’ve used it for years. It’s simple and user friendly
I've always used fertility friend. Always been accurate for me !!