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.