Retrograde - Tracking Mercury

Is Mercury retrograde? One glance answers it. A living map of the sky, uncannily timed advice, and every window from 1900 to 2100 on your phone, never on a server.

Retrograde answers one question elegantly and accurately: is Mercury retrograde? ...and then makes it useful, beautiful, and a little bit funny.

Open the app and the sky itself answers: a living map of the inner solar system, computed on your phone with Kepler's equations, replays the last sixty days so you can watch Mercury's apparent motion reverse. Drag it to travel through time. Feel a gentle tap at the exact moment it turns around.

WHAT YOU GET

• The answer, instantly: "Mercury is retrograde. 13 days until direct."
• A living orrery: Sun, Earth, and Mercury at their true positions — tap to replay, drag to scrub time
• The window map: lead-up, retrograde, and all-clear as one glowing bar, with today marked
• Planner: every window from 1900 to 2100 — check your wedding date, your launch day, your birthday
• Premonitions: witty, genuinely useful advice that arrives at uncannily random times, only while you're awake, never more than twice a day
• Daily advice worth sharing; one tap turns it into a story-sized image
• Alerts: morning status, lead-up begins, 24-hour warning, retrograde begins, direct, all clear
• Widgets for Home Screen and Lock Screen, including a daily-advice widget

PRIVATE BY DESIGN

There is no server to trust. Two centuries of NASA/JPL-derived retrograde data ship inside the app. The sky view is computed on your device. No account, no tracking, no analytics, no network requests. Your data stays yours because it never leaves.

Buy it once. Use it for two hundred years.