# 3D Scratchpad vs SpinFire XR

The clearest difference is in-app purchases: SpinFire XR at none against 3D Scratchpad's 3. SpinFire XR also leads on update cadence (every 5 months vs every 15 months) and iOS requirement (13.0 vs 18.0). 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. SpinFire XR asks for nothing beyond the download.

3D Scratchpad ships an update every 15 months, SpinFire XR every 5 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 3D Scratchpad | SpinFire XR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (12 ratings)](https://appshunter.io/ios/app/3d-scratchpad/id957422439/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 18.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 months** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 227 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Engineered Stuff](https://appshunter.io/developer/383720996) | [Theorem Solutions Limited](https://appshunter.io/developer/1380153381) |

## 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 |


### SpinFire XR

[App page](https://appshunter.io/ios/app/spinfire-xr/id1584959423)

**In-app purchases:** none


## Frequently asked questions

### Is 3D Scratchpad free?

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

### Is SpinFire XR free?

SpinFire XR is free to download, with no in-app purchases.

### Do 3D Scratchpad or SpinFire XR have ads?

Neither 3D Scratchpad nor SpinFire XR shows ads.

### Which is updated more often, 3D Scratchpad or SpinFire XR?

3D Scratchpad ships an update every 15 months, and SpinFire XR every 5 months. Most recently, 3D Scratchpad was updated on October 13, 2026 and SpinFire XR 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.*