# Gengou vs 年間カレンダー

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.

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.

## The numbers

| Metric | Gengou | 年間カレンダー |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/gengou/id288968943/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 6 months** |
| Monetization | Paid | — |
| Size | 3 MB | 0 MB |
| Requires iOS | **15.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) | [Next SeeD](https://appshunter.io/developer/475202455) |

## What reviewers say

### Gengou

[App page](https://appshunter.io/ios/app/gengou/id288968943)

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.

**Highlights:** 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)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 年間カレンダー

[App page](https://appshunter.io/ios/app/id1048359882)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Gengou free?

Gengou costs $0.99, with no in-app purchases.

### Is 年間カレンダー free?

年間カレンダー costs $0.99, with no in-app purchases.

### Do Gengou or 年間カレンダー have ads?

Neither Gengou nor 年間カレンダー shows ads.

### Which is updated more often, Gengou or 年間カレンダー?

Gengou ships an update every 30 months, and 年間カレンダー every 6 months. Most recently, Gengou was updated on October 29, 2026 and 年間カレンダー on October 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*