# 和暦計算 vs Gen

The clearest difference is in-app purchases: 和暦計算 at none against Gen's 1. Gen's advantage is iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Gen sells 1 one-off in-app purchase. 和暦計算 asks for nothing beyond the download.

和暦計算 ships an update every 6 months, Gen every 3 months. The most recent releases landed on October 9, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 和暦計算 | Gen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 7 MB | 7 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takashi Shinyashiki](https://appshunter.io/developer/1235395472) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### 和暦計算

[App page](https://appshunter.io/ios/app/id1235395473)

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

**In-app purchases:** none


### Gen

[App page](https://appshunter.io/ios/app/gen-go/id6445837465)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM | $3.99 | one-time |


## Frequently asked questions

### Is 和暦計算 free?

和暦計算 is free to download, with no in-app purchases.

### Is Gen free?

Gen is free to download, with in-app purchases available.

### Do 和暦計算 or Gen have ads?

Both 和暦計算 and Gen show ads.

### Which is updated more often, 和暦計算 or Gen?

和暦計算 ships an update every 6 months, and Gen every 3 months. Most recently, 和暦計算 was updated on October 9, 2026 and Gen on October 27, 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.*