# Color Master vs 印鑑画像作成ツール byNSDev

The clearest difference is review sentiment: Color Master at 100% against 印鑑画像作成ツール byNSDev's 0%. Color Master also leads on iOS requirement (15.0 vs 17). 印鑑画像作成ツール byNSDev's advantage is update cadence (fortnightly vs every 13 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Color Master ships an update every 13 months, 印鑑画像作成ツール byNSDev fortnightly. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Color Master | 印鑑画像作成ツール byNSDev |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 1 MB | 6 MB |
| Requires iOS | **15.0** | 17 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Rikuto Sato](https://appshunter.io/developer/1492548460) | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) |

## What reviewers say

### Color Master

[App page](https://appshunter.io/ios/app/color-master/id1604042293)

Discover beautiful color palettes to spark your creativity. This app is ideal for designers and illustrators seeking inspiration through a wide variety of colors.

**Highlights:** Color palette discovery, Inspiration for designers, Inspiration for illustrators, Wide variety of colors

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

**In-app purchases:** none


### 印鑑画像作成ツール byNSDev

[App page](https://appshunter.io/ios/app/bynsdev/id6748853247)

Easily create custom seal images by inputting text. Adjust various aspects like shape, borders, and colors to generate unique designs. Supports system and custom fonts for personalized seals.

**Highlights:** Create round, oval, square, and rectangular seals, Adjustable border thickness, Mirror text option, Customizable text and background colors, Support for system and custom fonts (TTF, OTF), Adjustable character spacing

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

**In-app purchases:** none


## Frequently asked questions

### Is Color Master free?

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

### Is 印鑑画像作成ツール byNSDev free?

印鑑画像作成ツール byNSDev is free to download, with no in-app purchases.

### Do Color Master or 印鑑画像作成ツール byNSDev have ads?

Neither Color Master nor 印鑑画像作成ツール byNSDev shows ads.

### Which is updated more often, Color Master or 印鑑画像作成ツール byNSDev?

Color Master ships an update every 13 months, and 印鑑画像作成ツール byNSDev fortnightly. Most recently, Color Master was updated on October 11, 2026 and 印鑑画像作成ツール byNSDev on October 4, 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.*