# SubPing vs RoomTrace 3D

The clearest difference is price: SubPing at Free against RoomTrace 3D's $2.99. RoomTrace 3D's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

SubPing is free to download; RoomTrace 3D costs $2.99 up front. SubPing sells 2 in-app purchases, starting at $0.99 per month. RoomTrace 3D asks for nothing beyond the download.

## The numbers

| Metric | SubPing | RoomTrace 3D |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/roomtrace-3d/id6803338815/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Monetization | — | Paid |
| Size | 7 MB | 2 MB |
| Requires iOS | 18 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [昊 陆](https://appshunter.io/developer/1398172088) | [鑫 宋](https://appshunter.io/developer/1857419453) |

## What reviewers say

### SubPing

[App page](https://appshunter.io/ios/app/subping/id6738984335)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Lifetime | $4.99 | one-time |


### RoomTrace 3D

[App page](https://appshunter.io/ios/app/roomtrace-3d/id6803338815)

Transform your real-world rooms into explorable 3D spaces with simple room scanning. This app identifies walls, doors, windows, and furniture, allowing you to view, rotate, and export your creations in various formats. It prioritizes user privacy with on-device processing and no tracking.

**Highlights:** Simple room scanning with on-screen prompts, Automatic identification of walls, doors, windows, and furniture, 3D viewing with rotation and zoom, On-device processing for privacy, Export to USDZ and OBJ formats, No account, ads, or tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SubPing free?

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

### Is RoomTrace 3D free?

RoomTrace 3D costs $2.99, with no in-app purchases.

### Do SubPing or RoomTrace 3D have ads?

Neither SubPing nor RoomTrace 3D shows ads.

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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.*