# Draw Grid on Image vs Value Study Assistant

The clearest difference is rating: Value Study Assistant at 5.0 against Draw Grid on Image's 4.4. Value Study Assistant also leads on in-app purchases (none vs 1) and ads (none vs shown). Draw Grid on Image's advantage is ratings volume (197 vs 1) and iOS requirement (13.0 vs 17.0). On price and device support there is nothing between them.

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

Value Study Assistant holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Draw Grid on Image has 197 ratings behind it against 1, so its average is the more settled of the two.

Draw Grid on Image ships an update fortnightly, Value Study Assistant every 4 days. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Draw Grid on Image | Value Study Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (197 ratings)](https://appshunter.io/ios/app/draw-grid-on-image/id1529850456/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/value-study-assistant/id6759689446/reviews)** |
| Number of ratings | **197** | 1 |
| Positive reviews | 65.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 122 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thang Do](https://appshunter.io/developer/976836323) | [Kristina Nelson](https://appshunter.io/developer/1880210857) |

## What reviewers say

### Draw Grid on Image

[App page](https://appshunter.io/ios/app/draw-grid-on-image/id1529850456)

Overlay a customizable grid onto your images to maintain drawing proportions. Choose from various grid types, paper sizes, and units. Adjust line width and color for precise visual guides. Save your grid images to your camera roll with the Pro version.

**Highlights:** Add grid overlay to images, Multiple grid types (rectangle, square), Customizable grid dimensions, Selectable paper sizes and units, Adjustable line width and color, Save grid images (Pro version)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $4.99 | one-time |

**What reviewers like**

- 🚀 Easy to use and efficient
- 👍 Saves time on manual gridding
- ✨ Helpful for projects and drawing
- 💯 Highly recommended by users
- ✅ Simple and functional

**What reviewers complain about**

- 😠 Too many intrusive ads
- 👎 Useless for macOS
- 💰 Misleading free claims, actually paid
- 🚫 Cannot save photos without upgrading
- 🐛 Incorrect grid dimensions

**Reported bugs**

- Ads cannot be turned off
- App is not functional on macOS
- Incorrect grid dimensions when inputting values
- Cannot save photos without upgrading
- Cannot use own photos without upgrading

**Requested features**

- Add user manual
- Add numbering to grid cells
- Improve accuracy of paper section sizes
- Add black border option for grid lines
- Add white and black filter option


### 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


## Frequently asked questions

### Is Draw Grid on Image free?

Draw Grid on Image is free to download, with in-app purchases available.

### Is Value Study Assistant free?

Value Study Assistant is free to download, with no in-app purchases.

### Which has better reviews, Draw Grid on Image or Value Study Assistant?

Value Study Assistant is rated higher. Draw Grid on Image averages 4.4 out of 5 from 197 ratings, while Value Study Assistant averages 5.0 from 1 ratings.

### Do Draw Grid on Image or Value Study Assistant have ads?

Draw Grid on Image shows ads; Value Study Assistant does not.

### Which is updated more often, Draw Grid on Image or Value Study Assistant?

Draw Grid on Image ships an update fortnightly, and Value Study Assistant every 4 days. Most recently, Draw Grid on Image was updated on October 12, 2026 and Value Study Assistant on October 1, 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.*