Moon Codex
Precise lunar tracking for astrologers and moon enthusiasts
Questions or feedback?
bogdan.barbus@icloud.comFrequently Asked Questions
Tap the "Date" tab at the bottom and use the slider to navigate to any date from 1900-2100. Swipe through centuries of lunar data at your fingertips.
The Moon is Void of Course between its last major aspect in a zodiac sign and when it enters the next sign. Many astrologers consider this period important for timing activities and decision-making—some traditions suggest avoiding major decisions or new ventures during VOC periods.
No! All 200 years of astronomical data is pre-calculated and stored locally on your device. Moon Codex works perfectly offline—no internet connection needed, ever.
Moon Codex uses Swiss Ephemeris calculations—the same professional-grade astronomical library used by astronomers and astrologers worldwide. Accurate to within ±1 minute for all phase transitions, sign changes, and VOC periods.
Long-press anywhere on your home screen → tap the "+" icon (top left) → search "Moon Codex" → select your preferred widget size → tap "Add Widget". Available in small, medium, and large sizes.
The moon's visual appearance varies based on your location, viewing angle, and atmospheric conditions. Moon Codex shows the astronomical phase, which is universal and scientifically accurate regardless of where you are on Earth.
Absolutely! I'm always looking to improve Moon Codex. Send your ideas and feature requests to the email above—I read every message.
Features
Privacy
Moon Codex respects your privacy completely. It doesn't collect, store, or transmit any personal data. No analytics, no tracking, no cloud services. All calculations happen locally on your device. Your data stays yours.
About
Moon Codex was built by an iOS developer passionate about astronomy and astrology. It provides precise lunar tracking for astrologers, gardeners, and anyone interested in lunar cycles. The app features 200 years of pre-calculated astronomical data (1900-2100) and works entirely offline using professional-grade Swiss Ephemeris calculations.