# Value Study Assistant vs Undertone

The clearest difference is in-app purchases: Value Study Assistant at none against Undertone's 1. Undertone's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

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

Value Study Assistant ships an update every 4 days, Undertone weekly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Value Study Assistant | Undertone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/value-study-assistant/id6759689446/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free | — |
| Size | 5 MB | 37 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:** none


### Undertone

[App page](https://appshunter.io/ios/app/undertone-color-analysis/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 no in-app purchases.

### 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 4 days, and Undertone weekly. Most recently, Value Study Assistant was updated on October 1, 2026 and Undertone on October 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.*