# ColorMixer Mix Unmix & Convert — Mixer for real colour

> Real-world color mixing and unmixing simulator with subtractive color model. (iPhone/iPad app by Xuan Li.)

- Source: https://appshunter.io/ios/app/colormixer-mix-unmix-and-convert/id1398134243 (this page in markdown: same URL + `.md`)
- Developer: [Xuan Li](https://appshunter.io/developer/475310080)
- Category: Productivity, Reference
- Price: Free with in-app purchases
- Rating: 3.52/5 from 27 App Store ratings · 27 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 8 MB
- Languages: English, Japanese, Chinese, Chinese
- Released: 2018-08-02
- Data updated: 2026-07-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/colormixer-mix-unmix-and-convert/id1398134243/reviews.md

## What is ColorMixer Mix Unmix & Convert?

Color mixing in the real world is often counter-intuitive and is completely different from the RGB model used in the digital world. In the RGB model, to mix orange you need red and green but in the real world, you actually need the red and yellow paint to get the color. 

ColorMixer is here to help to solve the real world color mixing problems using its unique subtractive color model. It is able to simulate real-world color mixing and more importantly, it can "unmix" any given color into a combination of mixing colors. 

The app also features a custom made color picker that allows you to pick colors from variable sources including a color wheel, color values in RGB, CMYK or HSL model, an image from your gallery or camera and your custom color table. 

There are 3 basic modes in this app, "Unmix", "Mix A + B" and "Convert A to B". With "Unmix", you select a color from the color picker and the app will resolve it into a combination of prime colors. With "Mix A + B", you select 2 colors and the app shows the result of mixing them together. With "Convert A to B", the app gives you a list of color you need to add to convert one color into another.

There is also an expert mode where you can complete all of the above functions in one single UI. 

In the mix composition screen, you can change the mixing ratios by tapping on the left or right side of the color card. You can also add new colors to the mix with the + button on the bottom. Any change to the mix will update the mixing result in real-time.

## Key features

- Subtractive color model simulation
- Color unmixing into prime colors
- Mixing two colors together
- Converting one color to another
- Custom color picker (wheel, RGB, CMYK, HSL, image)
- Expert mode for advanced users

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Recent user reviews (10 of 27)

All indexed reviews: https://appshunter.io/ios/app/colormixer-mix-unmix-and-convert/id1398134243/reviews.md

### 5/5 — 調色好幫手

*2025-10-14, version 2.8.0*

很棒的工具 希望可以持續增加顏色庫的色號

### 5/5 — Increíble

*2025-07-09, version 2.7.0*

Literal no hay ninguna aplicación que haga lo mismo, está increíble y es muy muy útil

### 5/5 — 色は3色しか混ぜられませんが使えます

*2025-05-09, version 2.6.1*

無料で使える機能的には他の混色アプリより遥かに使いやすいです。

他レビューにある機能詐欺の部分とはどんなところなのか不明ですが、今のところ画像から選択した色を使う機能に関してはバッチリです。

### 1/5 — Broken

*2025-03-24, version 2.6.1*

The last app update was 4 years ago. With current IOS, some critical app functionality isn’t working adequately. Used to be a great app. But currently broken.

### 3/5 — Realism Varies

*2025-03-20, version 2.6.1*

This app is almost perfect but has one major flaw. When I was testing the color mixing features for accuracy, I noticed that every time I mixed yellow with blue, I would get a gray shade or a very muted grayish-green. This should be how digital color mixing works, but this app claims to simulate real pigment mixing, and for the most part it does, but it never works with yellow and blue. If there is something that I am doing wrong, please inform me of what to do, because this is the best free color mixing app I have found by far.

### 5/5 — Good

*2024-12-01, version 2.6.1*

Does what it supposed to be good you know I mean, it could be a little bit better but on all really good

### 4/5 — Must have for Scale Modeling

*2024-10-22, version 2.6.1*

Love this App. Very useful for scale modeller. 
Would be nice if could rename the mixed and saved color.

### 5/5 — Brilliant

*2024-08-06*

This App Is Color Mixer I Can Mix Whatever I Love

### 5/5 — Helpful tool

*2024-02-10, version 2.6.1*

This app really helped visualizing paint mixes for scale models, it even has the popular paint brands built in, thou you might have to upgrade, I had to upgrade for access to GSI paints. But it’s worth the upgrade. It isn’t perfect, but gets a good base line so you aren’t wasting paints. My only complaint is that you can’t save mixes in the colour library under My Colours for easier sorting for future, although even in the saved mixes it’s great for noting mixes you’ll likely use in the future.

### 3/5 — Not enough color brands.

*2023-04-16, version 2.6.1*

Would be nice if more color brands would be added. Brands which are meant for mixing. For example: Golden (So Flat), Kimera Colors, Pro Acryl.

## Frequently asked questions about ColorMixer Mix Unmix & Convert

### What does ColorMixer do?

ColorMixer simulates real-world color mixing and unmixing using a subtractive color model, which differs from digital RGB mixing. It helps users understand how to achieve specific colors with paints and can break down any color into its component parts.

### What are the main features of ColorMixer?

Key features include simulating real-world color mixing, unmixing any color into its prime components, mixing two selected colors, and converting one color into another. It also offers a custom color picker and an expert mode for advanced functionality.

### How does the color mixing work in this app?

The app uses a subtractive color model, mimicking how paints mix in the real world. You can select two colors and see their combined result, or use the 'Convert A to B' feature to find the necessary colors and ratios to achieve a target color.

### Is ColorMixer free to use?

The app is free to download and use, but it offers in-app purchases. These purchases likely unlock additional features or advanced functionalities beyond the basic free offerings.

### Who would benefit from using ColorMixer?

This app is ideal for artists, graphic designers, hobbyists, students learning about color theory, and anyone who needs to understand or replicate physical color mixing accurately. It bridges the gap between digital color models and real-world paint interactions.

## Version history (last 5 releases)

### 3.3.1 — 2026-07-03

More hobby paint libraries, always up to date: browse a growing set of model & hobby paint color libraries — Tamiya, Mr. Color (Gunze), Humbrol, Testors, Vallejo, AK, and more. Libraries are now loaded from our online source, so new colors and updates arrive automatically without an app update.
Find Color: a new search screen that looks across every color library at once — search by name or code, see matches grouped by brand, and send any result straight to Mix, Unmix, or Convert.
My Colors – Sort & Group: sort your saved colors by date added, hue, brightness, or name, and group them by paint type or brand.
Precise editing: edit or delete an individual saved color without affecting other colors that share the same RGB value.
Polish: the interface now extends edge-to-edge for a cleaner, more consistent look.

### 3.3.0 — 2026-06-29

More hobby paint libraries, always up to date: browse a growing set of model & hobby paint color libraries — Tamiya, Mr. Color (Gunze), Humbrol, Testors, Vallejo, AK, and more. Libraries are now loaded from our online source, so new colors and updates arrive automatically without an app update.
Find Color: a new search screen that looks across every color library at once — search by name or code, see matches grouped by brand, and send any result straight to Mix, Unmix, or Convert.
My Colors – Sort & Group: sort your saved colors by date added, hue, brightness, or name, and group them by paint type or brand.
Precise editing: edit or delete an individual saved color without affecting other colors that share the same RGB value.
Polish: the interface now extends edge-to-edge for a cleaner, more consistent look.

### 2.8.0 — 2025-08-14

New find color feature allows searching for color name and code, plus bug fixes and stability improvements.

### 2.7.0 — 2025-05-12

Bug fixes

### 2.6.1 — 2021-03-07

Bug fixes.

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## More apps by Xuan Li

- [Surveyor AR](https://appshunter.io/ios/app/surveyor-ar/id1367813506)
- [Find color name](https://appshunter.io/ios/app/find-color-name/id1436295396)
- [DanceXR](https://appshunter.io/ios/app/dancexr/id6475269158)

All apps by Xuan Li: https://appshunter.io/developer/475310080

## Related topics

[color mixer and converter](https://appshunter.io/ios/topics/color-mixer-and-converter) · [color mixing guide](https://appshunter.io/ios/topics/color-mixing-guide) · [color mixer](https://appshunter.io/ios/topics/color-mixer) · [real color mixer](https://appshunter.io/ios/topics/real-color-mixer) · [paint mixer](https://appshunter.io/ios/topics/paint-mixer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-06.*