Gengou Lib3.0.1 - App Store
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Publisher Description
"Gengou Lib." 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.
Version History Minor bugs have been fixed. 3.0.1 Jul 4 ■ Quick Search for Japanese Eras
Find any era instantly! Search by hiragana (しょうわ),
romaji (showa), or kanji (昭和) - all input methods work!
Supports partial matching and year-based search.
■ Dark Mode Support
Easy on the eyes for comfortable nighttime use.
■ Other Improvements
Enhanced search performance and bug fixes. 3.0.0 08/26/2025 Supports the new era "令和 (Reiwa)"
Source: "初春令月氣淑風和" from Man'yōshū
Reference: "仲春令月時和気清" from Wen Xuan 2.1.0 04/12/2019 - Fixed a bug on the Japanese Calendar in the Settings. 1.0.1 03/02/2012 1.0 07/06/2008
About Gengou Lib
The company that develops Gengou Lib is 正行 Akamatsu. The latest version released by its developer is 3.0.1.
To install Gengou Lib on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Gengou Lib as malware if the download link is broken.
How to install Gengou Lib on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Gengou Lib is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Gengou Lib is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.0.1
posted on 2026-10-14
Version History Minor bugs have been fixed. 3.0.1 Jul 4 ■ Quick Search for Japanese Eras
Find any era instantly! Search by hiragana (しょうわ),
romaji (showa), or kanji (昭和) - all input methods work!
Supports partial matching and year-based search.
■ Dark Mode Support
Easy on the eyes for comfortable nighttime use.
■ Other Improvements
Enhanced search performance and bug fixes. 3.0.0 08/26/2025 Supports the new era "令和 (Reiwa)"
Source: "初春令月氣淑風和" from Man'yōshū
Reference: "仲春令月時和気清" from Wen Xuan 2.1.0 04/12/2019 - Fixed a bug on the Japanese Calendar in the Settings. 1.0.1 03/02/2012 1.0 07/06/2008
version 3.0.0
posted on 2026-06-30
Version History ■ Quick Search for Japanese Eras
Find any era instantly! Search by hiragana (しょうわ),
romaji (showa), or kanji (昭和) - all input methods work!
Supports partial matching and year-based search.
■ Dark Mode Support
Easy on the eyes for comfortable nighttime use.
■ Other Improvements
Enhanced search performance and bug fixes. 3.0.0 08/26/2025 Supports the new era "令和 (Reiwa)"
Source: "初春令月氣淑風和" from Man'yōshū
Reference: "仲春令月時和気清" from Wen Xuan 2.1.0 04/12/2019 - Fixed a bug on the Japanese Calendar in the Settings. 1.0.1 03/02/2012 1.0 07/06/2008
version 3.0.0
posted on 2025-08-26
■ Quick Search for Japanese Eras
Find any era instantly! Search by hiragana (しょうわ),
romaji (showa), or kanji (昭和) - all input methods work!
Supports partial matching and year-based search.
■ Dark Mode Support
Easy on the eyes for comfortable nighttime use.
■ Other Improvements
Enhanced search performance and bug fixes.
version 3.0.0
posted on 2025-08-26
Aug 26, 2025
Version 3.0.0
■ Quick Search for Japanese Eras
Find any era instantly! Search by hiragana (しょうわ),
romaji (showa), or kanji (昭和) - all input methods work!
Supports partial matching and year-based search.
■ Dark Mode Support
Easy on the eyes for comfortable nighttime use.
■ Other Improvements
Enhanced search performance and bug fixes.
version 2.1.0
posted on 2019-04-12
Apr 12, 2019 Version 2.1.0
Supports the new era "令和 (Reiwa)"
Source: "初春令月氣淑風和" from Man'yōshū
Reference: "仲春令月時和気清" from Wen Xuan
version 1.0.1
posted on 2008-07-11
version 2.1.0
posted on 1970-01-01
12 avr. 2019 Version 2.1.0
Supports the new era "令和 (Reiwa)"
Source: "初春令月氣淑風和" from Man'yōshū
Reference: "仲春令月時和気清" from Wen Xuan
version 2.1.0
posted on 1970-01-01
2019年4月12日 Version 2.1.0
Supports the new era "令和 (Reiwa)"
Source: "初春令月氣淑風和" from Man'yōshū
Reference: "仲春令月時和気清" from Wen Xuan
Disclaimer
Official App Store Link
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