# Pix8 vs Undertone

The clearest difference is in-app purchases: Pix8 at none against Undertone's 1. Pix8 also leads on iOS requirement (11.4 vs 15.0). Undertone's advantage is update cadence (every 10 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Undertone sells 1 one-off in-app purchase. Pix8 asks for nothing beyond the download.

Pix8 ships an update every 4 months, Undertone every 10 days. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Pix8 | Undertone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/undertone-color-and-value-study/id6761922242/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 33 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Samuel Hart](https://appshunter.io/developer/1456193848) | [Paintingstack Technologies SpA](https://appshunter.io/developer/1884953294) |

## What reviewers say

### Pix8

[App page](https://appshunter.io/ios/app/pix8/id1456194896)

**Features:** macOS Compatibility

**In-app purchases:** none


### Undertone

[App page](https://appshunter.io/ios/app/undertone-color-and-value-study/id6761922242)

Analyze images like a painter by visualizing values, color temperatures, and composition. Understand the underlying structure and pigment colors of any reference photo or artwork. Save your analyses for future reference.

**Highlights:** Value study (grayscale tonal zones), Warm/cool temperature map, Composition analysis (rule of thirds, golden ratio), Real pigment color palette, Saturation visualization, Contrast mapping

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $12.99 | one-time |


## Frequently asked questions

### Is Pix8 free?

Pix8 is free to download, with no in-app purchases.

### Is Undertone free?

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

### Do Pix8 or Undertone have ads?

Neither Pix8 nor Undertone shows ads.

### Which is updated more often, Pix8 or Undertone?

Pix8 ships an update every 4 months, and Undertone every 10 days. Most recently, Pix8 was updated on November 6, 2026 and Undertone on November 8, 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.*