Color4u: Adult Coloring Book 4+

Color with Friends in iMessage

Cool GamApp Limited

    • 4.7 • 1.6K Ratings
    • Free
    • Offers In-App Purchases


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.

• 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:
Privacy policy:

What’s New

Version 2.5

iOS 16 Compatible

Ratings and Reviews

4.7 out of 5
1.6K Ratings

1.6K Ratings

BrainGames27 ,

Great App

I like that all the colors are available without an extra charge. There are also many pages to choose from that range from very easy to extremely intricate. If I could change/add anything, it would be a feature where the colors you are using are saved so that you can go back to them without having to scroll through all the pallets. All in all, an excellent app for free.

Woo_Woo* ,

3-star coloring App

I’ve been using this App for about two weeks now, so my review will be more detailed from use. We need more color schemes, more pictures, there are several categories but even having purchased use, coloring pages are limited! I still really like the gradient colors, this is one of the stars for your app. It would be great to have glitter colors or have a few prime glitter colors to add glitter to a coloring page. Personally, I think your monthly fee is over priced, especially without having a lot of bells & whistles to use.

I previously gave a 5 star, I’m downgrading to 3 star at present.

Developer Response ,

Thanks for your valuable feedbacks.
We have release version 2.0 and hope it will provide better experience and we will continue improve the app. Please note we have a very unique color capture feature which you can make your own color palette with your friends in inMessage.

QueenDe ,

So far, my favorite

Going on options available on the free version alone, not even having to commit to a week long trial and then the magical charges beginning if I don't remember to cancel... Definitely my favorite. Intricate enough to keep me occupied and the color options are phenomenal for just starting.

App Privacy

The developer, Cool GamApp Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Purchases
  • Location
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Location
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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