# JHP byNSDev vs 和暦変換

The clearest difference is ads: JHP byNSDev at none against 和暦変換's shown. JHP byNSDev also leads on iOS requirement (15.6 vs 17.6). 和暦変換's advantage is update cadence (every 9 days vs every 7 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JHP byNSDev ships an update every 7 months, 和暦変換 every 9 days. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | JHP byNSDev | 和暦変換 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 9 days** |
| Size | 26 MB | 114 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [Hiroyuki Nishijima](https://appshunter.io/developer/1389796249) |

## What reviewers say

### JHP byNSDev

[App page](https://appshunter.io/ios/app/jhp-bynsdev/id1244732477)

**Features:** macOS Compatibility

**In-app purchases:** none


### 和暦変換

[App page](https://appshunter.io/ios/app/id1453666818)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JHP byNSDev free?

JHP byNSDev is free to download, with no in-app purchases.

### Is 和暦変換 free?

和暦変換 is free to download, with no in-app purchases.

### Do JHP byNSDev or 和暦変換 have ads?

和暦変換 shows ads; JHP byNSDev does not.

### Which is updated more often, JHP byNSDev or 和暦変換?

JHP byNSDev ships an update every 7 months, and 和暦変換 every 9 days. Most recently, JHP byNSDev was updated on October 3, 2026 and 和暦変換 on October 2, 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.*