# Color4u: Adult Coloring Book — Color with Friends in iMessage

> Collaborative adult coloring book with iMessage integration and custom palette creation. (iPhone/iPad app by Cool GamApp Limited.)

- Source: https://appshunter.io/ios/app/color4u-adult-coloring-book/id1205087916 (this page in markdown: same URL + `.md`)
- Developer: [Cool GamApp Limited](https://appshunter.io/developer/885791901)
- Category: Entertainment, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.70/5 from 1,927 App Store ratings · 172 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 244 MB
- Languages: Danish, Russian, Norwegian Bokmål, Indonesian, Turkish, Greek, German (Germany), Italian, Japanese, French (France) and 13 more
- Released: 2017-05-13
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/color4u-adult-coloring-book/id1205087916/reviews.md

## What is Color4u?

The first collaborative coloring book app, capture colors from camera and edit color palettes with friends in iMessage. Send secret with a coloring page to encourage others to color.
Coloring is known to be one of the best way to relax and destress. Now combine the power of iMessage with coloring book for adults through the color4u app.

You can collaborate with your friends on a custom color palette for a coloring page in iMessage. You can communicate, edit, pick colors or capture colors to create an unique color palette directly in iMessage. An unique color palette belongs to you and your friends only!
Coloring collaboratively with your friends is as easy as 1-2-3:
Your friends are enjoying a beautiful sunshine in a beach, and you are coloring a page about a beach.
1. Pick the coloring page and ask for color advice from your friends in Color4u
2. Your friends just tap the received message in iMessage to activate our Color4u Camera, then they just take a photo and a beautiful color palette is created for you.
3. You just tap the save button in the replied message, and then you can use this special color palette in Color4u.

It is an app that allows you to send a coloring page with a message that is revealed only to the receiver after they color the picture attached to the message.
Pick from hundreds of coloring pictures, motivating messages and phrases from dozens of categories.
▸ Send an I Love You picture to your love so they can color it and send it back.
▸ Annoyed with a friend? Send a complex, time consuming picture to color.

Download the app to enjoy the coloring book for adults that combines the power of iMessage too.
Best Coloring Book for Adults, Kids and Grown ups.

Features:
• Capture colors from camera and photos to create custom color palettes.
• Share color palettes and edit it together with friends in iMessage.
• Drag and drop support in iPad - drag image from Safari or other apps to capture colors and create color palette.
• Ask for color advice through iMessage and your friends can suggest colors by picking colors or capturing colors in iMessage.
• Bundled iMessage App to send hidden message with a coloring page just like send a sticker.
• Send secret with a coloring page directly in the app and your friends color it in iMessage. You get a read receipt with a colored page once they read the secret message.
• Frame your colored pages in different objects in AR world, take picture and share it.
• Coloring pages in 20+ Categories. Mandalas, Zen, cute animals, gardens, floral, patterns, flowers, retro 90s and more!
• Kawaii pastel palettes and create your own palettes
• Gradient color palettes
• Post-editing effects to turn your coloring pages into art
• 300+ FREE Coloring pages + Daily Free Image

Color4u Premium Subscription
• Unlimited access to all images
• All color palettes - e.g. gradient color palettes
• Remove watermark of saved pictures
• Remove Ads
• Subscriptions are from $2.99 weekly, $9.99 monthly and $49.99 yearly.
• You may cancel a subscription or free-trial anytime via the subscription setting through your iTunes account. This must be done 24 hours before the end of the subscription period or free-trial period.
• Payment will be charged to iTunes Account at confirmation of purchase.
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
• Account will be charged for renewal within 24-hours prior to the end of the current period for the same price and duration period as the original weekly/monthly/yearly plan.
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
• Any unused portion of a free-trial period will be forfeited when you purchase a Premium Subscription.

Terms of use:  http://color4u.coolgamapp.com/terms.html
Privacy policy: http://color4u.coolgamapp.com/privacy.html

## Key features

- Collaborative color palette creation in iMessage
- Capture colors from camera and photos
- Send secret coloring pages with revealed messages
- Hundreds of coloring pages across 20+ categories
- AR framing and sharing of colored pages
- Daily free coloring images

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Coloring Books | $2.99 | per 7 days |
| Coloring Books | $9.99 | per month |
| Coloring Books | $49.99 | per year |


## What do users think of Color4u?

Overall sentiment: positive

**Pros**

- 👍 Relaxing and therapeutic
- 🎨 Wide variety of coloring options
- 💡 Ability to customize colors and textures
- 🖌️ Intuitive and user-friendly interface
- 🎨 Detailed and intricate coloring pages

**Cons**

- 💰 Some content locked behind paywall
- 🐛 Occasional technical issues and crashes
- 🔍 Difficulty finding specific colors or tools
- ⏱️ Slow loading times for some images

**Commonly reported bugs**

- Inability to download or access certain images
- Inconsistent performance across devices
- Syncing issues with progress or saved work

**Most requested features**

- More free coloring pages and content
- Ability to save and share completed artwork
- Improved organization of color palettes
- Integration with music playback or other apps

## Recent user reviews (10 of 172)

All indexed reviews: https://appshunter.io/ios/app/color4u-adult-coloring-book/id1205087916/reviews.md

### 5/5 — love it

*2026-03-20, version 2.5*

this app has just what i wanted! i highly

### 5/5 — 好玩

*2026-01-05*

这款游戏非常好玩 简单易上手 闲的时候就可以拿他打发时间 我觉得这是一款非常好的游戏

### 5/5 — ١

*2025-12-27, version 2.5*

م

### 5/5 — The best game ever!

*2025-12-25, version 2.5*

Downloaded this app I was scared because I thought that I had to pay but on the second day my mom was mad at me and then I was like maybe I should just colour on that colorful, colourful app colouring games and then and then my mom came in the room and she and she said are you OK? I’m sorry and then I forgive her like a chill girl and and that And then and then and then we we we went outside and I took my iPad just to cover and it was the best day ever trust me and merry Christmas to all and hope you guys have a great day or a great holiday or a great Christmas using this.

### 1/5 — Color4u

*2025-07-24, version 2.5*

I used to love this app but now I can’t download any picture to color it because I keep getting a message that says there’s been an ERROR!?

### 2/5 — 广告

*2025-07-19*

广告特别多，灵敏度不好，刚看完广告，想画的就要重找

### 4/5 — I love the game

*2025-06-18, version 2.5*

Ok I’m going to start off with that this game is a good game but when it comes to coloring houses you can’t because it is not a thing but I will give it a 4 star review.good game good game!

### 4/5 — Amazing game

*2025-01-24, version 2.5*

I absolutely love this game but there are a lot of drawings that r relly hard to do i love this game thourh its free it has no ads si far it’s amazing you need to download it

### 5/5 — AMAZING 😀😁

*2024-12-28, version 2.5*

I adore this game because for about 2 or 3 days I had been looking for a game with no annoying ads also a game you didn’t have to pay for this game and it has zero ads also, there are also no in game purchases which I really like. 👍 Also, when I downloaded the game I thought it would be a typical regular colouring game with only the colours of the rainbow to use in paintings but I was so wrong you not only can change textures but there are colour pack that are free like pastel, Christmas, hummingbird and even dog fur colours, skin colours, hair colours, ice cream flavours and so much more not only that you have the most gorgeous pictures to choose from that are of course free! This game is THE BEST and I 100% recommend you to download it for free today also for a better experience use an apple pen 🖊️

### 5/5 — Best app!

*2024-12-23, version 2.5*

Usually I will scroll down the app store to find coloring games but I always have to pay when I download. But this app is honestly just perfect.  There are cute coloring pages. Not much ads. And another stuff! Best coloring game EVER!

## Frequently asked questions about Color4u

### What is Color4u?

Color4u is a collaborative coloring book app designed for adults. It allows users to create and share custom color palettes with friends directly within iMessage. The app also enables sending secret coloring pages that are revealed only after the recipient colors them.

### How does the collaborative coloring work?

Users can ask friends for color advice in iMessage. Friends can then use the app's camera to capture colors from a photo, creating a custom palette that is shared back. This palette can then be used by the original user within the app.

### What are the pricing options for Color4u?

The app offers a freemium model with a premium subscription. The subscription provides unlimited access to all images, all color palettes, watermark removal, and ad removal. Subscription options range from weekly to yearly plans.

### What kind of coloring pages are available?

The app features over 300 free coloring pages, with a daily free image. These pages are available in more than 20 categories, including Mandalas, Zen, animals, gardens, floral, patterns, and retro themes.

### Can I send secret messages with coloring pages?

Yes, the app includes a bundled iMessage app that allows you to send a coloring page with a message. This message is hidden and only revealed to the receiver once they have colored the attached picture. You will receive a notification once the secret message is read and the page is colored.

## Version history (last 5 releases)

### 2.5 — 2022-12-12

iOS 16 Compatible

### 2.4 — 2022-04-16

iOS 15 compatible

### 2.3.1 — 2021-04-03

Improved iOS 14 compatibility.

### 2.3 — 2021-04-01

iOS 14 compatible.

### 2.2 — 2020-03-10

• New Images

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## More apps by Cool GamApp Limited

- [Symbol Infinity: Font Keyboard](https://appshunter.io/ios/app/symbol-infinity-font-keyboard/id885792712)
- [Symbol Infinity Pro - No Ads](https://appshunter.io/ios/app/symbol-infinity-pro-no-ads/id892025516)
- [Color Fonts Keyboard: Cute Bio](https://appshunter.io/ios/app/color-fonts-keyboard-cute-bio/id961012600)
- [Color Fonts Keyboard Pro](https://appshunter.io/ios/app/color-fonts-keyboard-pro/id963095776)
- [Kawaii Food Sticker](https://appshunter.io/ios/app/kawaii-food-sticker/id1153970256)
- [Doodle Emotions](https://appshunter.io/ios/app/doodle-emotions/id1154468009)

All apps by Cool GamApp Limited: https://appshunter.io/developer/885791901

## Related topics

[printable coloring pages](https://appshunter.io/ios/topics/printable-coloring-pages)

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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 2026-08-26.*