# UDevice vs ARMOR

The clearest difference is price: ARMOR at Free against UDevice's $4.99. ARMOR also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 78%). UDevice's advantage is in-app purchases (none vs 3) and ratings volume (36 vs 2). On ads and device support there is nothing between them.

ARMOR is free to download; UDevice costs $4.99 up front. ARMOR sells 3 in-app purchases, starting at $4.99 per month. UDevice asks for nothing beyond the download.

ARMOR holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: UDevice has 36 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 78% of UDevice's written reviews are positive against 100% of ARMOR's.

UDevice ships an update every 3 weeks, ARMOR every 2 weeks. The most recent releases landed on October 22, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | UDevice | ARMOR |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.4 (36 ratings)](https://appshunter.io/ios/app/udevice-dev-assistant/id1608053878/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/armor-urdf-and-robot-simulator/id6755694245/reviews)** |
| Number of ratings | **36** | 2 |
| Positive reviews | 78.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#30** | — |
| Size | 159 MB | 36 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Gansu Zhenxian Network Technology Co., Ltd.](https://appshunter.io/developer/1616881226) | [Eliott Radcliffe](https://appshunter.io/developer/1477487767) |

## What reviewers say

### UDevice

[App page](https://appshunter.io/ios/app/udevice-dev-assistant/id1608053878)

**Currently charting:** #30 Top Paid · Developer Tools (US App Store)

This app offers a comprehensive suite of developer and testing tools. It includes network utilities like HTTP(s) capture and DNS parsing, alongside system information and file management capabilities. Ideal for development, testing, and device management.

**Highlights:** HTTP(s) Capture/Rewrite, SSH and Terminal access, Python3 interpreter, Cookie editing, Network utilities (Ping, DNS, Traceroute, Port Scan), File manager, Device fingerprinting and system info

**Features:** macOS Compatibility, Safari Extension, Apple Watch app, Vision Pro support

**In-app purchases:** none


### ARMOR

[App page](https://appshunter.io/ios/app/armor-urdf-and-robot-simulator/id6755694245)

Simulate robot dynamics with a powerful physics engine and visualize them in augmented reality. Load and inspect URDF robot files, edit them, and export for further development. Ideal for engineers, students, and researchers working with robotics.

**Highlights:** MuJoCo physics engine, Advanced URDF viewer, Built-in editor and export, Humanoid and spatial robot visualization, Robot arm kinematics, Augmented Reality (AR) integration, ROS workflow integration

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $49.99 | per year |
| Premium Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is UDevice free?

UDevice costs $4.99, with no in-app purchases.

### Is ARMOR free?

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

### Which has better reviews, UDevice or ARMOR?

ARMOR is rated higher. UDevice averages 4.4 out of 5 from 36 ratings, while ARMOR averages 5.0 from 2 ratings.

### Do UDevice or ARMOR have ads?

Neither UDevice nor ARMOR shows ads.

### Which is updated more often, UDevice or ARMOR?

UDevice ships an update every 3 weeks, and ARMOR every 2 weeks. Most recently, UDevice was updated on October 22, 2026 and ARMOR on October 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.*