# Value Study Assistant vs Undertone

The clearest difference is device support: Undertone at 4 against Value Study Assistant's 2. Undertone also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases 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.

Value Study Assistant ships an update every 5 days, Undertone every 9 days. The most recent releases landed on October 18, 2026 and October 25, 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)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Free | — |
| Size | 5 MB | 32 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-study/id6761922242)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $9.99 | 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.

### 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 9 days. Most recently, Value Study Assistant was updated on October 18, 2026 and Undertone 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.*