Every other period app uploads your most private data to a server. feelings doesn't have one. No account, no cloud, no analytics, your cycle is encrypted and stays on your phone. Nothing to sell, nothing to leak.
Track flow, moods, symptoms. Read past notes from yourself. Get honest predictions (never more certain than the data allows). Export a clean PDF for your doctor.
Pay once, $14.99. No subscription. Your body isn't a revenue stream.
Every other subscription tracker charges $4.99 per month. To track your subscriptions. I built Vaultly because that joke had gone on long enough. It's $2.99 once. Not per month. Once. The whole thing runs on your phone, so there's no server to leak, no account to delete, no telemetry. Free up to 4 subs. Pay $2.99 if you want unlimited, custom billing cycles, and 10 currencies. iOS only.