# Reality OBJ vs DioramaMapMaker

The clearest difference is price: Reality OBJ at Free against DioramaMapMaker's $3.99. Reality OBJ also leads on update cadence (weekly vs every 2 months). DioramaMapMaker's advantage is in-app purchases (none vs 4) and device support (4 vs 2). On ads and iOS requirement there is nothing between them.

Reality OBJ is free to download; DioramaMapMaker costs $3.99 up front. Reality OBJ sells 4 in-app purchases, starting at $2.99 per 7 days. DioramaMapMaker asks for nothing beyond the download.

Reality OBJ ships an update weekly, DioramaMapMaker every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Reality OBJ | DioramaMapMaker |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/reality-obj-usdz-converter/id1603967912/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 15 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Ariel Ortiz](https://appshunter.io/developer/1583119689) | [Yu-Hsiang Chang](https://appshunter.io/developer/1775810372) |

## What reviewers say

### 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 |


### DioramaMapMaker

[App page](https://appshunter.io/ios/app/dioramamapmaker/id6770131261)

**In-app purchases:** none


## Frequently asked questions

### Is Reality OBJ free?

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

### Is DioramaMapMaker free?

DioramaMapMaker costs $3.99, with no in-app purchases.

### Do Reality OBJ or DioramaMapMaker have ads?

Neither Reality OBJ nor DioramaMapMaker shows ads.

### Which is updated more often, Reality OBJ or DioramaMapMaker?

Reality OBJ ships an update weekly, and DioramaMapMaker every 2 months. Most recently, Reality OBJ was updated on November 3, 2026 and DioramaMapMaker on October 31, 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.*