Thanks, this is really useful feedback.

The reminder part is already on the roadmap, and I’ve now added two more issues based on your note about irregular cycles:

• #17 Add irregularity factor tags for cycle tracking
• #18 Use recorded cycle factors to improve prediction context

The direction I’d want for Ovumcy is less “the app predicts the why” and more:

• users can log things like stress, illness, travel, sleep disruption, etc.
• the app can use that to give better context and reliability hints for irregular cycles
• without pretending to make hard medical claims

The anonymous scrubbed-submission idea is interesting too, but I’d treat that as much later, because it changes the privacy/trust model a lot.

Happy to keep talking about it, and future PRs would definitely be welcome.