Tracecolor is a coloring program. You can take a picture and convert it into its outline traces and then you can color it as you like. It is designed to be simple to use for kids or older adults who enjoy drawing. There are small set of controls for pen size, opacity, and color selection. There is a zoom page to enlarge a section of the picture in order to focus on the detail in that section. Pictures can come from your camera, library, or our materials page. On the photo edit page, you can color over the original picture, invert the colors, or create an outline (there are various sliders for changing your outline). The program is free, except if you want to save your picture to your photo library, then you need to unlock the app on the materials page.

Art therapy can be useful for keeping the mind active. Coloring books are typically either simple books for children and quite complex books for adults.
But it is harder to find books in middle which have simple images that are interesting for adults. With this program, you can take photos and create your own materials. It might also be more meaningful and fun to have images that come from their own life (e.g., a favorite place or pet).

What’s New

Version 1

Fixes to material page to allow downloading of pictures

Ratings and Reviews

3.0 out of 5
1 Rating

1 Rating

evv11 ,

Hard to use, not sure what the settings do

To test this app, I drew the outline of a lemon and took a picture of it, hoping to color it in. The app is a good idea, but there is only an interface showing the bars to change settings of the picture but nothing is labeled. What am I changing? How do I get a clear outline of the image? Unfortunately there is no option to simply outline, and the image is covered in speckles even if there are hardly any values present. This app can also only be used horizontally, which is annoying if you’re using your phone. If everything in the app was labeled and better suited to trace outlines without speckles, or at least if there was an option to remove the speckles, this could be an amazing app for quickly adding color to line art!


Franklin Chang
18 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Unlock this app $4.99
  2. Brutalist Building 1 $1.99
  3. Traditional Japanese House 1 $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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