Gengou Free Downloads & RevenueGengou Free · App Store
Not in any tracked top chart right now.
Updated 7 Nov 2026 · rankings refresh through the day
DeveloperMasayuki Akamatsu
CategoryProductivity
PriceFree
Released
Rating★ 3.6 (41)
Version3.1.0
Age rating4+
First seen by us
23 Oct 2026
23 Oct 2026Full timeline · 3 events
- 🆕Gengou Free first spotted by AppInsiderJapan (found via developer)
- 📦Gengou Free version 3.1.0- Renamed the app back to its original name, "Gengou Free."
- Added support for iPhone Duo. When you hold the unfolded display sideways, the Japanese year, the zodiac sign, and the years elapsed are shown on one line so that the pickers stay large.
- The reading of the era name is no longer cut off on displays with limited height.
- Improved how ads are shown. The app now asks for permission to track, and in Europe and some other regions it also asks for your consent to ads.
- Updated for iOS 27. iOS 15 or later is now required.… more - 🆕Gengou Free released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.6 ★
41 ratings
Measured
Gengou Free on the App Store
App details
App ID
284830543
Publisher
正行 Akamatsu
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
7 MB
Also listed in
Utilities
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
3.6 ★
41 ratings
Measured
Ratings
41
Measured
About Gengou Free
"Gengou Free" is a quick reference of the Japanese era system. This application has functions as below.
- Era and Year Search
- Period picker
- Era picker
- Christian era year picker
- Japanese era year picker
- Show this year button
- Texts can be shown in Japanese or English independently of the default language setting.
- Application badge can show this year number in the Japanese era or the Christian era.
The Japanese era system identifies a year by the combination of the era name (Gengou or Nengou) and the year number within the era. For example, A.D. 2001 is Heisei 13. Please note that two Gengou schemes were used in Parallel from 1331 to 1392 during Nanboku-chō period.
This application would be very useful if you are working with the governments, municipal offices and/or certain companies in Japan.
- Era and Year Search
- Period picker
- Era picker
- Christian era year picker
- Japanese era year picker
- Show this year button
- Texts can be shown in Japanese or English independently of the default language setting.
- Application badge can show this year number in the Japanese era or the Christian era.
The Japanese era system identifies a year by the combination of the era name (Gengou or Nengou) and the year number within the era. For example, A.D. 2001 is Heisei 13. Please note that two Gengou schemes were used in Parallel from 1331 to 1392 during Nanboku-chō period.
This application would be very useful if you are working with the governments, municipal offices and/or certain companies in Japan.
Latest updates
3.1.0
- Renamed the app back to its original name, "Gengou Free."
- Added support for iPhone Duo. When you hold the unfolded display sideways, the Japanese year, the zodiac sign, and the years elapsed are shown on one line so that the pickers stay large.
- The reading of the era name is no longer cut off on displays with limited height.
- Improved how ads are shown. The app now asks for permission to track, and in Europe and some other regions it also asks for your consent to ads.
- Updated for iOS 27. iOS 15 or later is now required.
