# Trichromacy Color Tool vs Proref

The clearest difference is in-app purchases: Trichromacy Color Tool at none against Proref's 1. Trichromacy Color Tool also leads on update cadence (daily vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Proref sells 1 one-off in-app purchase. Trichromacy Color Tool asks for nothing beyond the download.

Trichromacy Color Tool ships an update daily, Proref every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Trichromacy Color Tool | Proref |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trichromacy-color-tool/id6767031536/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | Free | — |
| Size | 60 MB | 44 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Dublin](https://appshunter.io/developer/1331586552) | [John Oliver Atienza](https://appshunter.io/developer/1526037866) |

## What reviewers say

### Trichromacy Color Tool

[App page](https://appshunter.io/ios/app/trichromacy-color-tool/id6767031536)

Create and explore color palettes using various harmony rules and extract colors from images. Visualize color in 3D using perceptually uniform systems, and export palettes in multiple formats for professional design workflows.

**Highlights:** Generate palettes from seed color, Extract colors from photos, Visualize color in 3D, Perceptually uniform color systems, Export palettes in multiple formats, Calm, professional interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Proref

[App page](https://appshunter.io/ios/app/proref-art-reference-boards/id6802284370)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proref Pro | $7.99 | one-time |


## Frequently asked questions

### Is Trichromacy Color Tool free?

Trichromacy Color Tool is free to download, with no in-app purchases.

### Is Proref free?

Proref is free to download, with in-app purchases available.

### Do Trichromacy Color Tool or Proref have ads?

Neither Trichromacy Color Tool nor Proref shows ads.

### Which is updated more often, Trichromacy Color Tool or Proref?

Trichromacy Color Tool ships an update daily, and Proref every 2 weeks. Most recently, Trichromacy Color Tool was updated on October 24, 2026 and Proref on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*