# 3D Scratchpad vs Solid Engineer

The clearest difference is review sentiment: Solid Engineer at 100% against 3D Scratchpad's 19%. Solid Engineer also leads on rating (5.0 vs 2.7) and in-app purchases (none vs 3). 3D Scratchpad's advantage is ratings volume (12 vs 1). On price, ads 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. Solid Engineer asks for nothing beyond the download.

Solid Engineer holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: 3D Scratchpad has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 19% of 3D Scratchpad's written reviews are positive against 100% of Solid Engineer's.

3D Scratchpad ships an update every 15 months, Solid Engineer every 5 months. The most recent releases landed on September 22, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | 3D Scratchpad | Solid Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (12 ratings)](https://appshunter.io/ios/app/3d-scratchpad/id957422439/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/solid-engineer/id6450507988/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 18.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 16 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Engineered Stuff](https://appshunter.io/developer/383720996) | [Axxem B.V.](https://appshunter.io/developer/1515691144) |

## 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 |


### Solid Engineer

[App page](https://appshunter.io/ios/app/solid-engineer/id6450507988)

This app teaches programming through visual 3D model creation. It offers modes for beginners to advanced users, including JavaScript support. Models can be printed or shared.

**Highlights:** Visual programming interface, 3D model creation, Printable model export, Beginner to advanced modes, JavaScript integration, Keyframe animation

**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 Solid Engineer free?

Solid Engineer is free to download, with no in-app purchases.

### Which has better reviews, 3D Scratchpad or Solid Engineer?

Solid Engineer is rated higher. 3D Scratchpad averages 2.7 out of 5 from 12 ratings, while Solid Engineer averages 5.0 from 1 ratings.

### Do 3D Scratchpad or Solid Engineer have ads?

Neither 3D Scratchpad nor Solid Engineer shows ads.

### Which is updated more often, 3D Scratchpad or Solid Engineer?

3D Scratchpad ships an update every 15 months, and Solid Engineer every 5 months. Most recently, 3D Scratchpad was updated on September 22, 2026 and Solid Engineer on June 11, 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.*