# Drawing Grid vs NotanIzer

Drawing Grid and NotanIzer both sit at 4.3 stars, but that hides the real split: 82% of NotanIzer's written reviews are positive against 22% of Drawing Grid's. NotanIzer also leads on chart position (#32 vs unranked) and ratings volume (105 vs 18). On price, rating, update cadence and ads there is nothing between them.

Drawing Grid costs $1.99 and NotanIzer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.3 for Drawing Grid against 4.3 for NotanIzer. That said, the two scores are not equally well evidenced: NotanIzer has 105 ratings behind it against 18, so its average is the more settled of the two. Written reviews are what separate them: 22% of Drawing Grid's written reviews are positive against 82% of NotanIzer's.

Drawing Grid ships an update every 3 months, NotanIzer every 2 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Drawing Grid | NotanIzer |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [4.3 (18 ratings)](https://appshunter.io/ios/app/drawing-grid/id500885379/reviews) | **[4.3 (105 ratings)](https://appshunter.io/ios/app/notanizer/id1169086981/reviews)** |
| Number of ratings | 18 | **105** |
| Positive reviews | 22.0% of reviews | **81.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Best chart rank | — | **#32** |
| Size | 2 MB | 30 MB |
| Requires iOS | 17.0 | 17 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Maciej Chrzastek](https://appshunter.io/developer/500885382) | [bigpantsgroup LLC](https://appshunter.io/developer/315959079) |

## What reviewers say

### Drawing Grid

[App page](https://appshunter.io/ios/app/drawing-grid/id500885379)

This app assists artists in maintaining accurate proportions for their drawings. It allows users to set canvas and grid dimensions, choose between square or custom-sized blocks, and transform images by adjusting position and size.

**Highlights:** Set canvas size, Set grid properties, Square or custom block sizes, Transform image position, Transform image size, Maintain drawing proportions

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✅ Effective grid overlay for drawing proportions
- 🎨 Customizable grid size, color, and thickness
- 👍 Useful for artists and mural projects
- 🔧 Adjustable opacity and visual controls
- 💰 Free version available

**What reviewers complain about**

- 🐛 App crashes frequently when saving images
- 😕 Poor user interface and confusing controls
- 🔲 Grid moves unexpectedly when adjusting image
- ❌ Difficult to delete or reset images
- ⚠️ Slider controls are unresponsive and hard to use

**Reported bugs**

- App crashes when attempting to save images
- Grid becomes uneven or creates rectangles instead of squares
- Grid moves when zooming or adjusting image
- Unable to load new images after first use
- Tutorial overlay cannot be dismissed

**Requested features**

- Proper save-to-camera-roll functionality
- Delete/reset button for starting over
- Lock grid to image during zoom operations
- Ability to input exact grid dimensions numerically
- Proportional enlargement capability


### NotanIzer

[App page](https://appshunter.io/ios/app/notanizer/id1169086981)

**Currently charting:** #32 Top Paid · Photo & Video (US App Store)

This app helps artists analyze the light and dark elements in their images. It offers various tools to convert images to black and white, grayscale, or multi-level palettes, allowing for detailed structural analysis and design enhancement. Users can also invert filter displays and share their processed images.

**Highlights:** Black and white conversion with adjustable threshold, Grayscale and color display modes, Multi-level color palette generation (3, 4, 10 levels), Adjustable level sliders, Slice function to highlight value ranges, Invert filter display option, Image sharing capabilities

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 💡 Great for analyzing values/lighting
- 🎨 Useful for artists/painting
- 🚀 Quick and straightforward
- ✨ Creates interesting images

**What reviewers complain about**

- 🐛 Sidebar overlays controls on macOS
- 🐛 Images come out white on Mac
- 🐛 Cannot save named files to chosen folder
- 🐛 Watermark on prints after paying
- 🐛 Monthly fee and no way to remove app

**Reported bugs**

- Sidebar overlays slider controls and prevents their use on macOS
- Images come out white on Mac
- Watermark on prints after paying
- App won't open after 30 days
- Export images crashes app on iPad

**Requested features**

- Allow saving named files to chosen folder
- Disable sound effect for level limits
- Improve photo access to retain position
- Fix macOS sidebar overlay issue
- Fix Mac image export issue (white images)


## Frequently asked questions

### Is Drawing Grid free?

Drawing Grid costs $1.99, with no in-app purchases.

### Is NotanIzer free?

NotanIzer costs $1.99, with no in-app purchases.

### Which has better reviews, Drawing Grid or NotanIzer?

NotanIzer is rated higher. Drawing Grid averages 4.3 out of 5 from 18 ratings, while NotanIzer averages 4.3 from 105 ratings.

### Do Drawing Grid or NotanIzer have ads?

Neither Drawing Grid nor NotanIzer shows ads.

### Which is updated more often, Drawing Grid or NotanIzer?

Drawing Grid ships an update every 3 months, and NotanIzer every 2 months. Most recently, Drawing Grid was updated on November 6, 2026 and NotanIzer on November 6, 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.*