# TraceSousyo byNSDev vs Kyujitai

The clearest difference is update cadence: Kyujitai at every 3 months against TraceSousyo byNSDev's every 24 months. TraceSousyo byNSDev's advantage is iOS requirement (12.0 vs 15.0). On price, ads, 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.

TraceSousyo byNSDev ships an update every 24 months, Kyujitai every 3 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TraceSousyo byNSDev | Kyujitai |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 17 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [Emmanuel Ternon](https://appshunter.io/developer/1415038866) |

## What reviewers say

### TraceSousyo byNSDev

[App page](https://appshunter.io/ios/app/tracesousyo-bynsdev/id1252624354)

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

**In-app purchases:** none


### Kyujitai

[App page](https://appshunter.io/ios/app/kyujitai/id1415038867)

Easily convert Japanese text between Shinjitai and Kyūjitai character sets. This utility leverages an open-source Python library for accurate conversions.

**Highlights:** Shinjitai to Kyūjitai conversion, Kyūjitai to Shinjitai conversion, Based on open-source library, Supports iPhone, iPad, iPod

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

**In-app purchases:** none


## Frequently asked questions

### Is TraceSousyo byNSDev free?

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

### Is Kyujitai free?

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

### Do TraceSousyo byNSDev or Kyujitai have ads?

Neither TraceSousyo byNSDev nor Kyujitai shows ads.

### Which is updated more often, TraceSousyo byNSDev or Kyujitai?

TraceSousyo byNSDev ships an update every 24 months, and Kyujitai every 3 months. Most recently, TraceSousyo byNSDev was updated on October 24, 2026 and Kyujitai on October 7, 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.*