# 3D Scratchpad vs Snap Draw Iso

The clearest difference is review sentiment: Snap Draw Iso at 80% against 3D Scratchpad's 19%. Snap Draw Iso also leads on rating (4.0 vs 2.7) and in-app purchases (none vs 3). 3D Scratchpad's advantage is ads (none vs shown) and ratings volume (12 vs 4). On price and device support there is nothing between them.

Both are free to download. 3D Scratchpad sells 3 in-app purchases, starting at $1.99 per month. Snap Draw Iso asks for nothing beyond the download.

Snap Draw Iso holds the better App Store score, 4.0 against 2.7. Both are backed by a comparable volume of ratings — 12 and 4 respectively. Written reviews point the same way: 19% of 3D Scratchpad's written reviews are positive against 80% of Snap Draw Iso's.

3D Scratchpad ships an update every 15 months, Snap Draw Iso every 3 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 3D Scratchpad | Snap Draw Iso |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (12 ratings)](https://appshunter.io/ios/app/3d-scratchpad/id957422439/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/snap-draw-iso/id6471840091/reviews)** |
| Number of ratings | **12** | 4 |
| Positive reviews | 18.5% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 7 MB | 18 MB |
| Requires iOS | 18.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Engineered Stuff](https://appshunter.io/developer/383720996) | [andrew bell](https://appshunter.io/developer/445167639) |

## What reviewers say

### 3D Scratchpad

[App page](https://appshunter.io/ios/app/3d-scratchpad/id957422439)

Create 3D models with a user-friendly design tool. Freehand draw in 3D using primitive shapes and gestures. Manipulate objects with augmented reality and share your creations as .usdz files.

**Highlights:** Freehand 3D drawing, Primitive solid shapes, Intuitive gestures, Augmented reality manipulation, Share as .usdz files

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Subscription | $1.99 | per month |
| Six Month Subscription | $6.99 | per 6 months |
| One Year Subscription | $9.99 | per year |


### Snap Draw Iso

[App page](https://appshunter.io/ios/app/snap-draw-iso/id6471840091)

Create isometric drawings with ease using a crosshair and snap sound for precise line connections. Customize grids, colors, and import/export various formats. Offers advanced features like bitmap brushes and gradient fills for detailed designs.

**Highlights:** Isometric and 2D grids, Customizable colors, Import/Export formats, Fill options (solid, gradient, pattern), Large canvas with pan/zoom, Text and FX options, Bitmap and vector layer mixing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D Scratchpad free?

3D Scratchpad is free to download, with in-app purchases available.

### Is Snap Draw Iso free?

Snap Draw Iso is free to download, with no in-app purchases.

### Which has better reviews, 3D Scratchpad or Snap Draw Iso?

Snap Draw Iso is rated higher. 3D Scratchpad averages 2.7 out of 5 from 12 ratings, while Snap Draw Iso averages 4.0 from 4 ratings.

### Do 3D Scratchpad or Snap Draw Iso have ads?

Snap Draw Iso shows ads; 3D Scratchpad does not.

### Which is updated more often, 3D Scratchpad or Snap Draw Iso?

3D Scratchpad ships an update every 15 months, and Snap Draw Iso every 3 days. Most recently, 3D Scratchpad was updated on October 13, 2026 and Snap Draw Iso on October 15, 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.*