13 Month Fixed Calendar is a productivity app developed by erkantr.
Download Statistics
13 Month Fixed Calendar has been downloaded 25 thousand times. In the last 30 days, the app was downloaded 830 times.
User Ratings
13 Month Fixed Calendar is rated 2.83 out of 5 stars. The rating is based on 180 ratings.
App Information
13 Month Fixed Calendar is FREE to download. The APK download size is 4.62 MB. The latest version available is 2.2.3. The last update was on May 13, 2025.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since March 2024.
Description
The International Fixed Calendar is a calendar system where every year aligns with the same days of the week and dates, ensuring consistency in weekly patterns. It was first proposed by Moses B.
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This app is mostly accurate. The only thing that seems incorrect is the year day (day out of time for rest) being at the end of December. From all the research I've done on the old calendar year day is supposed to happen between March 28th and April 1st because April 1st used to be the New year before new years was changed to January 1st. (apparently why April first is called April fools) but since year day is a day out of time for rest the dates in the app are still correct.
★★★★☆Victor Balderas· Apr 14, 2025
I like the 13th month concept. You are ahead a few days. Writing this review, and currently the app says it's on day 21 of April. When it would actually be on the day sixteen. Yes I did the comparison with the Gregorian calendar and traced back from February 2026 the following year to come, the month is a perfect alignment with the days matching perfectly. Aside from other comments editing dates and setting reminders would be an excellent edition. Keep it up! Looking forward to new improvements
★★☆☆☆Ladislav Piaček· Oct 25, 2025
Please, if you can add possibility to set starting day of calendar from official calendar, so I can really use it then. I want to match weekdays each eyar. e.g. 30th december 2024 gregorian = 1. January 2025 in fixed.
★☆☆☆☆SageStormCloudMoonGoddess· Apr 3, 2025
I'd give it zero stars, but that's not an option. This app Does Literally Nothing except Show you an image of the Calendar. It needs to be taken down.
★☆☆☆☆jason poggenpoel· Jul 13, 2026
it's the normal calendar and not the true 13-month calendar... False information.
★★☆☆☆RICLEY75· Mar 3, 2025
Page looks good but 7,14,21,28 are missing in every row on every month until I turn my phone to view in horizontal view then the number come back, but also it's not on the right date and the day not highlighted on which actual day it is and more than one month has the same day highlighted, what's what, please fix I really like this concept, and your is the only of its type. It would be great to have a settings menu to change basics like to fit on phone screen
Google Play Rankings for 13 Month Fixed Calendar
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Technologies used by 13 Month Fixed Calendar
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