# 3D Scratchpad vs ISD Studio 3D

The clearest difference is review sentiment: ISD Studio 3D at 100% against 3D Scratchpad's 19%. ISD Studio 3D also leads on update cadence (every 2 months vs every 15 months) and monetization model (free vs free with in-app purchases). 3D Scratchpad's advantage is rating (2.7 vs 2.5) and ratings volume (12 vs 2). On price, ads, in-app purchases 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 and ISD Studio 3D sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

3D Scratchpad holds the better App Store score, 2.7 against 2.5. That said, the two scores are not equally well evidenced: 3D Scratchpad has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 19% of 3D Scratchpad's written reviews are positive against 100% of ISD Studio 3D's, so the app with the better star average is not the one people write more warmly about.

3D Scratchpad ships an update every 15 months, ISD Studio 3D every 2 months. The most recent releases landed on September 22, 2026 and August 5, 2026 respectively.

## The numbers

| Metric | 3D Scratchpad | ISD Studio 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (12 ratings)](https://appshunter.io/ios/app/3d-scratchpad/id957422439/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/isd-studio-3d/id6504453776/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | 18.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 62 MB |
| Requires iOS | 18.0 | **12.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Engineered Stuff](https://appshunter.io/developer/383720996) | [Lilysoft LLC](https://appshunter.io/developer/1752353880) |

## 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 |


### ISD Studio 3D

[App page](https://appshunter.io/ios/app/isd-studio-3d/id6504453776)

Design and animate 3D characters with this tool. Create custom models by manipulating surfaces, then rig them with skeletons to add motion and export as glTF animations or VRM avatars.

**Highlights:** Create 3D character models, Deform and combine surfaces, Rig models with skeletons, Add motion for animation, Export glTF animations, Export VRM avatars

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


## Frequently asked questions

### Is 3D Scratchpad free?

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

### Is ISD Studio 3D free?

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

### Which has better reviews, 3D Scratchpad or ISD Studio 3D?

3D Scratchpad is rated higher. 3D Scratchpad averages 2.7 out of 5 from 12 ratings, while ISD Studio 3D averages 2.5 from 2 ratings.

### Do 3D Scratchpad or ISD Studio 3D have ads?

Neither 3D Scratchpad nor ISD Studio 3D shows ads.

### Which is updated more often, 3D Scratchpad or ISD Studio 3D?

3D Scratchpad ships an update every 15 months, and ISD Studio 3D every 2 months. Most recently, 3D Scratchpad was updated on September 22, 2026 and ISD Studio 3D on August 5, 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.*