# SousyoConverter byNSDev vs KotenOCR

The clearest difference is review sentiment: SousyoConverter byNSDev at 80% against KotenOCR's 0%. SousyoConverter byNSDev also leads on in-app purchases (none vs 3) and iOS requirement (12.0 vs 16.0). KotenOCR's advantage is update cadence (daily vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. KotenOCR sells 3 one-off in-app purchases. SousyoConverter byNSDev asks for nothing beyond the download.

SousyoConverter byNSDev ships an update every 2 months, KotenOCR daily. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SousyoConverter byNSDev | KotenOCR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/kotenocr/id6760045646/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **80.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 247 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [Satoru Nakamura](https://appshunter.io/developer/1841530905) |

## What reviewers say

### SousyoConverter byNSDev

[App page](https://appshunter.io/ios/app/sousyoconverter-bynsdev/id1198103735)

Convert Kanji characters into cursive script using a brush font. Customize text size, placement, and ratios for unique calligraphy. Request features and provide feedback for future updates.

**Highlights:** Kanji to cursive script conversion, Brush font style, Adjustable text size, Customizable placement, Ratio adjustment

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

**In-app purchases:** none


### KotenOCR

[App page](https://appshunter.io/ios/app/kotenocr/id6760045646)

This application uses AI to convert classical Japanese cursive script (kuzushiji) into digital text. Simply take a photo of the script, and the app will automatically recognize and convert it. All processing is done on-device, supporting over 7,000 characters and optimized for historical documents.

**Highlights:** Photo to text conversion, AI-powered kuzushiji recognition, On-device processing, Copy and share text, Supports 7,000+ characters, Optimized for historical documents

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $6.99 | one-time |


## Frequently asked questions

### Is SousyoConverter byNSDev free?

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

### Is KotenOCR free?

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

### Do SousyoConverter byNSDev or KotenOCR have ads?

Neither SousyoConverter byNSDev nor KotenOCR shows ads.

### Which is updated more often, SousyoConverter byNSDev or KotenOCR?

SousyoConverter byNSDev ships an update every 2 months, and KotenOCR daily. Most recently, SousyoConverter byNSDev was updated on October 9, 2026 and KotenOCR on October 13, 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.*