# 3D Scratchpad vs Reality OBJ

The clearest difference is review sentiment: Reality OBJ at 71% against 3D Scratchpad's 19%. Reality OBJ also leads on rating (4.2 vs 2.7) and update cadence (weekly vs every 15 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. 3D Scratchpad sells 3 in-app purchases, starting at $1.99 per month and Reality OBJ sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Reality OBJ holds the better App Store score, 4.2 against 2.7. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews point the same way: 19% of 3D Scratchpad's written reviews are positive against 71% of Reality OBJ's.

3D Scratchpad ships an update every 15 months, Reality OBJ weekly. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 3D Scratchpad | Reality OBJ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (12 ratings)](https://appshunter.io/ios/app/3d-scratchpad/id957422439/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/reality-obj-usdz-converter/id1603967912/reviews)** |
| Number of ratings | **12** | 5 |
| Positive reviews | 18.5% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 29 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Engineered Stuff](https://appshunter.io/developer/383720996) | [Ariel Ortiz](https://appshunter.io/developer/1583119689) |

## 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 |


### Reality OBJ

[App page](https://appshunter.io/ios/app/reality-obj-usdz-converter/id1603967912)

Easily convert 3D models from OBJ format to USDZ, a format optimized for AR experiences. Customize material properties like textures and colors, and generate thumbnails for your models. Supports AR viewing and video recording.

**Highlights:** Convert OBJ to USDZ, Modify material properties, Import OBJ models, Generate thumbnails, Record video, AR support

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $2.99 | per 7 days |
| All Access | $3.99 | per month |
| All Access | $14.99 | per year |
| All Access | $14.99 | one-time |


## Frequently asked questions

### Is 3D Scratchpad free?

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

### Is Reality OBJ free?

Reality OBJ is free to download, with in-app purchases available.

### Which has better reviews, 3D Scratchpad or Reality OBJ?

Reality OBJ is rated higher. 3D Scratchpad averages 2.7 out of 5 from 12 ratings, while Reality OBJ averages 4.2 from 5 ratings.

### Do 3D Scratchpad or Reality OBJ have ads?

Neither 3D Scratchpad nor Reality OBJ shows ads.

### Which is updated more often, 3D Scratchpad or Reality OBJ?

3D Scratchpad ships an update every 15 months, and Reality OBJ weekly. Most recently, 3D Scratchpad was updated on September 22, 2026 and Reality OBJ on September 23, 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.*