# Value Study vs GridArt

The clearest difference is review sentiment: Value Study at 92% against GridArt's 33%. Value Study also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Value Study sells 5 in-app purchases, starting at $3.99 per year and GridArt sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Value Study holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Value Study has 3.3K ratings behind it against 176, so its average is the more settled of the two. Written reviews point the same way: 92% of Value Study's written reviews are positive against 33% of GridArt's.

Value Study ships an update weekly, GridArt every 3 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Value Study | GridArt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.3K ratings)](https://appshunter.io/ios/app/value-study-art-reference/id1546616127/reviews)** | [4.5 (176 ratings)](https://appshunter.io/ios/app/gridart-drawing-grid/id6474590995/reviews) |
| Number of ratings | **3.3K** | 176 |
| Positive reviews | **91.9% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 33 MB | 40 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Diem Limited](https://appshunter.io/developer/1439019995) | [Vaghani Keyur](https://appshunter.io/developer/1164464860) |

## What reviewers say

### Value Study

[App page](https://appshunter.io/ios/app/value-study-art-reference/id1546616127)

This app helps artists improve their skills by analyzing light and shadow in reference images. It allows users to break down tones step-by-step, from simple black and white to more complex value ranges, aiding in the understanding of depth and form. It's a tool to enhance traditional art studies.

**Highlights:** Step-by-step tone breakdown, Highlighting areas of same value, Focus on light, shadow, and form, Greyscale value studies, Works with reference images

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Value Study Pro | $3.99 | per year |
| Appreciation | $2.99 | one-time |
| Value Study Pro (Lifetime) | $9.99 | one-time |
| Generous boost | $9.99 | one-time |
| Amazing supporter | $24.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful for value studies
- 💡 Allows adjusting number of values
- 🎨 Useful for artists and painters
- ⭐ Great tool for beginners

**What reviewers complain about**

- 🐛 Issues with accurately representing blue hues
- 🔍 Difficulty finding/importing photos
- 🤔 Unclear instructions/lack of tutorial

**Reported bugs**

- App crashes or fails to launch on some devices
- Occasional issues with image processing

**Requested features**

- Add ability to adjust value midpoint
- Include color study/color adjustment options
- Provide side-by-side comparison of original and simplified images
- Add customizable grid overlay


### GridArt

[App page](https://appshunter.io/ios/app/gridart-drawing-grid/id6474590995)

This app helps artists accurately sketch or replicate images using the grid drawing technique. It overlays customizable grids on any image, offering features like sketch filters and measurement-based setup to streamline the artistic process.

**Highlights:** Drawing grid overlay on images, Diagonal grid option, Customizable grid color and opacity, Sketch filter for image simplification, Measurement-based grid setup, Zoom functionality, Convert images to black and white

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GridArt Weekly Premium | $3.99 | per 7 days |
| GridArt Monthly Premium | $12.99 | per month |


## Frequently asked questions

### Is Value Study free?

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

### Is GridArt free?

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

### Which has better reviews, Value Study or GridArt?

Value Study is rated higher. Value Study averages 4.8 out of 5 from 3.3K ratings, while GridArt averages 4.5 from 176 ratings.

### Do Value Study or GridArt have ads?

GridArt shows ads; Value Study does not.

### Which is updated more often, Value Study or GridArt?

Value Study ships an update weekly, and GridArt every 3 months. Most recently, Value Study was updated on September 23, 2026 and GridArt on September 22, 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.*