Easily calculate graduation years, ages, and convert between Gregorian and Japanese eras. Customize for early or late birthdays, or even years of repeating a grade. All information is accessible without any advertisements.
1.30.1
June 25, 2026
・行をタップすると、年齢・和暦・干支・卒業年度などを確認できる詳細カードを表示できるようになりました。 ・設定画面を整理し、使いやすくしました。 ・その他、軽微な表示調整と安定性の改善を行いました。
Moreありがとうございます！
ありがとうございます！
ありがとうございます！
ありがとうございます！
ありがとうございます！
You can input your school entry year and the duration of your study to calculate your graduation year. The app allows for customization based on your birth timing and academic progression, such as repeating a grade.
Yes, the app facilitates easy conversion between the Gregorian calendar (西暦) and Japanese eras (和暦). This is useful for understanding historical dates or for official documentation.
Absolutely. You can set your birth timing as early (早生まれ) or late (遅生まれ) to ensure accurate age calculations. This feature helps account for variations in birth dates within a school year.
Based on the provided data, the app is available on iPhone, iPad, and iPod. Information regarding Android compatibility is not available in this data.
The app was last updated on January 15, 2026, with version 1.27.1. This indicates a recent update, suggesting ongoing maintenance and potential feature additions.
The app has an age rating of 4+. This means it is suitable for children aged 4 and above, with no mature content.
No, the description explicitly states that there are no advertisements (広告も一切ありません) within the app. This provides an uninterrupted user experience.
You can use information such as your academic history (学歴), era name (元号), year (年号), or birth date (生年月日/誕生日) to perform calculations within the app.
