# Tracecolor

> Photo to outline converter and digital coloring application. (iPhone/iPad app by Franklin Chang.)

- Source: https://appshunter.io/ios/app/tracecolor/id1472203437 (this page in markdown: same URL + `.md`)
- Developer: [Franklin Chang](https://appshunter.io/developer/1467299920)
- Category: Productivity, Photo & Video
- Price: Free with in-app purchases
- Rating: 3.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 5 MB
- Languages: American English
- Released: 2019-07-26
- Data updated: 2026-08-22
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tracecolor/id1472203437/reviews.md

## What is Tracecolor?

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).

## Key features

- Convert photos to outlines
- Customizable outline sliders
- Coloring with pen and color selection
- Zoom for detailed coloring
- Import from camera, library, or materials
- Invert colors and edit original picture

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock this app | $4.99 | one-time |
| Brutalist Building 1 | $1.99 | one-time |
| Traditional Japanese House 1 | $1.99 | one-time |
| Storefront 1 | $1.99 | one-time |
| Large Sakura | $1.99 | one-time |
| Blocks | $1.99 | one-time |
| Rakugo | $1.99 | one-time |
| Rice Plants | $1.99 | one-time |
| Shirts | $1.99 | one-time |
| Smokestack | $1.99 | one-time |
| Sphere | $1.99 | one-time |
| Sphere2 | $1.99 | one-time |
| Sphere3 | $1.99 | one-time |
| Tamade | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/tracecolor/id1472203437/reviews.md

### 3/5 — Hard to use, not sure what the settings do

*2020-08-07*

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!

**Developer response:** Thanks for the comment.  The landscape format is for the button layout, but I might try to create a portrait layout later.  The interface bars change parameters within builtin-apple filters for photo manipulation, but honestly, I have no idea what they do (the documentation is not very detailed).  So that is one reason why there are no labels.  Getting a clear outline is very hard in general, which is why apple does not provide an outline filter.  What is probably happening is that there are small variations in yellow in your picture and the filters treats them as different colors.  So one thing to try it is to change your photo in another program so that there are fewer colors or reduce the overall resolution.  Finally, it is possible to change the paint color to white and paint over the speckles before saving.  There are certain kinds of images that tend to work well with the program and finding them is not so easy.  Good luck!

## Frequently asked questions about Tracecolor

### How do I create a coloring page with Tracecolor?

You can take a picture with your camera, select one from your library, or use materials provided within the app. Tracecolor then converts your chosen image into an outline that you can color.

### Can I save my colored creations from Tracecolor?

Yes, you can save your colored pictures to your photo library. This feature requires unlocking the app, which is a one-time in-app purchase.

### What devices does Tracecolor support?

Tracecolor is available on iPhone, iPad, and iPod, making it accessible for a wide range of Apple users.

### Is Tracecolor suitable for young children?

Yes, Tracecolor is designed to be simple to use and is rated for ages 4 and up, making it suitable for children to enjoy.

### Does Tracecolor have ads?

No, Tracecolor does not contain advertisements, providing an uninterrupted creative experience for users.

### How often is Tracecolor updated?

The latest version of Tracecolor was released on September 11, 2020. While updates are not frequent, the core functionality remains stable.

### What is the user rating for Tracecolor?

Tracecolor has a rating of 3.0 stars based on 1 rating. This indicates a mixed reception from its current user base.

### Can I adjust the outline style in Tracecolor?

Yes, Tracecolor offers various sliders on the photo edit page to change the appearance of the outline, allowing for customization of the tracing effect.

## Version history (last 3 releases)

### 1.1 — 2026-06-12

Block swipe left on color page
Launchscreen updated.
New pictures added.

### 1 — 2020-09-11

Fixes to material page to allow downloading of pictures

### 0.7 — 2019-07-18

No release notes.

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## More apps by Franklin Chang

- [Sumoscience](https://appshunter.io/ios/app/sumoscience/id1467299921)
- [Dictionedit](https://appshunter.io/ios/app/dictionedit/id1468649670)
- [Jotflash](https://appshunter.io/ios/app/jotflash/id1470827781)
- [Digitspeech](https://appshunter.io/ios/app/digitspeech/id1480608345)
- [SumoscienceAR](https://appshunter.io/ios/app/sumosciencear/id1522142998)

All apps by Franklin Chang: https://appshunter.io/developer/1467299920

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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 2026-08-22.*