# Value Study Assistant vs Undertone

The clearest difference is monetization model: Value Study Assistant at free against Undertone's free with in-app purchases. Value Study Assistant also leads on ratings volume (3 vs 1). Undertone's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Value Study Assistant sells 1 in-app purchase, starting at $9.99 per year and Undertone sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Value Study Assistant against 5.0 for Undertone. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Value Study Assistant ships an update every 5 days, Undertone every 10 days. The most recent releases landed on October 31, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Value Study Assistant | Undertone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/value-study-assistant/id6759689446/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/undertone-color-and-value-study/id6761922242/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 33 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kristina Nelson](https://appshunter.io/developer/1880210857) | [Paintingstack Technologies SpA](https://appshunter.io/developer/1884953294) |

## What reviewers say

### Value Study Assistant

[App page](https://appshunter.io/ios/app/value-study-assistant/id6759689446)

This app simplifies photos into distinct light and dark masses, helping artists analyze composition and value structure before painting. It offers adjustable value levels, comparison tools, and cropping to standard art proportions.

**Highlights:** Simplify photos into 2-10 value levels, Compare original photo with simplified study, Adjust individual value groups, Crop to standard painting proportions, Download value studies as JPG

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Studio Access | $9.99 | per year |


### 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 Value Study Assistant free?

Value Study Assistant is free to download, with in-app purchases available.

### Is Undertone free?

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

### Which has better reviews, Value Study Assistant or Undertone?

Value Study Assistant and Undertone are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Value Study Assistant or Undertone have ads?

Neither Value Study Assistant nor Undertone shows ads.

### Which is updated more often, Value Study Assistant or Undertone?

Value Study Assistant ships an update every 5 days, and Undertone every 10 days. Most recently, Value Study Assistant was updated on October 31, 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.*