Gengou vs 年間カレンダー
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gengou
Quickly convert between Japanese era names and Christian era years. Features include era and year searches, period and era pickers, and the ability to display text in Japanese or English.
- Era and Year Search
- Period Picker
- Era Picker
- Christian Era Year Picker
- Japanese Era Year Picker
- Show This Year Button
- Dual Language Support (JP/EN)
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"Gengou" 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.
年間カレンダー
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祝日や年号表記を含む日本の年間カレンダーを表示するアプリです。 土曜・日曜・祝日はわかりやすい色で表示してあります。 西暦だけではなく年号も併記しています。 今年以外の年のカレンダーも確認表示できます。 「一覧画面」では各年の祝日の一覧を表示できます。 設定 - 祝日名の表示 - 最初の曜日 (日曜日もしくは月曜日)
Screenshots
Verdict
The clearest difference is update cadence: 年間カレンダー at every 6 months against Gengou's every 30 months. Gengou's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.1). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Gengou costs $0.99 and 年間カレンダー $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Gengou ships an update every 30 months, 年間カレンダー every 6 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.
| Parameter | Gengou | 年間カレンダー |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 3.8 (4 ratings) — better | — |
| Positive reviews | 66.1% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 30 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 3 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Masayuki Akamatsu | Next SeeD |
In-app purchases
Gengou
No in-app purchases
年間カレンダー
No in-app purchases
