Red Diary: Period Tracker

A new home screen widget. Add Red Diary to your home screen to see your cycle day and phase at a glance, with your next period and recent logging on the larger size. Each phase has its own planet — Mars, Earth, Venus, Saturn. Apple Watch improvements. The watch now reads your actual cycle day rather than a stale estimate, and anything you log on your wrist is delivered even when your phone isn't nearby. Honest predictions. When Red Diary doesn't have enough recent data to predict — a long gap since your last logged period, or not enough cycles yet — it now says so plainly instead of showing a confident number it can't stand behind. Under the hood, your data is better protected against the kinds of problems that could previously cause history to be lost.