Moon Year Calendar
Utilities
Free · Designed for iPad. Not verified for macOS.
Moon Year Calendar reimagines the way you experience time.
Based on the International Fixed Calendar — 13 equal months of exactly
28 days each — every month starts on the same day of the week, every
year. No more uneven months. No more guessing which day a date falls on.
FEATURES
• 13-month calendar with 28 days per month, perfectly aligned every year
• Moon phase for every single day — see the full lunar cycle at a glance
• Zodiac sign displayed on each day
• Full year view — all 13 months on one screen
• Date converter — instantly translate any date between the Fixed
Calendar and the Gregorian calendar
• Dark mode, light mode, and system theme support
• Clean, minimal design
THE FIXED CALENDAR
The International Fixed Calendar was proposed in the early 20th century
as a rational alternative to the Gregorian calendar. It includes one
special day per year — Year Day (31 March) — and a Leap Day every 4
years (16 September). Both sit outside the regular month structure,
keeping every month identical.
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The developer, George Tsipolitis, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- George Tsipolitis
- Size
- 22.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 George Tsipolitis