# xArm vs LEGO® TECHNIC® CONTROL+

The clearest difference is rating: LEGO® TECHNIC® CONTROL+ at 4.8 against xArm's 3.0. LEGO® TECHNIC® CONTROL+ also leads on ratings volume (9.3K vs 3) and review sentiment (69% vs 50%). xArm's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LEGO® TECHNIC® CONTROL+ holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: LEGO® TECHNIC® CONTROL+ has 9.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of xArm's written reviews are positive against 69% of LEGO® TECHNIC® CONTROL+'s.

xArm ships an update every 5 months, LEGO® TECHNIC® CONTROL+ every 2 months. The most recent releases landed on June 24, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | xArm | LEGO® TECHNIC® CONTROL+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/xarm/id1257390363/reviews) | **[4.8 (9.3K ratings)](https://appshunter.io/ios/app/lego-technic-control-plus/id1465808291/reviews)** |
| Number of ratings | 3 | **9.3K** |
| Positive reviews | 50.0% of reviews | **69.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 4 MB | 2.0 GB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Hiwonder Technology Co.,Ltd](https://appshunter.io/developer/1090806812) | [LEGO](https://appshunter.io/developer/347363505) |

## What reviewers say

### xArm

[App page](https://appshunter.io/ios/app/xarm/id1257390363)

Control and program a robotic arm using your mobile device via Bluetooth. Save, download, and play custom actions to bring your robotic creations to life. This app offers an engaging way to interact with and explore the capabilities of the robotic arm.

**Highlights:** Bluetooth connectivity, Robotic arm control, Custom programming, Action group management, Action download and playback

**Features:** macOS Compatibility

**In-app purchases:** none


### LEGO® TECHNIC® CONTROL+

[App page](https://appshunter.io/ios/app/lego-technic-control-plus/id1465808291)

Enhance your LEGO Technic building experience with realistic driving controls and interactive features. Engage in challenges, unlock achievements, and enjoy authentic sound effects for a new level of play.

**Highlights:** Realistic multi-function control mode, One-touch screen control schemes, Challenges and achievements, Unlockable badges, Inspiring videos, Authentic sound effects, Real-time data

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Seamless Bluetooth connection
- 👍 Great for little children and adults
- 👍 Realistic sounds and missions
- 👍 Onboard sensors provide useful feedback

**What reviewers complain about**

- 🐛 Connectivity issues and app crashes
- 🐛 Buggy controls and calibration problems
- 🔋 High battery consumption
- 🔒 Lacks Bluetooth permission access
- 👎 Limited customization options

**Reported bugs**

- App gets stuck in firmware update loop
- Incorrect motor activation during calibration
- Bluetooth connection randomly drops
- Steering and throttle controls are swapped
- App crashes when losing a battle race

**Requested features**

- Custom control profiles for user-built models
- Support for MFi controllers
- Ability to edit saved movements
- Configurable control schemes
- Improved firmware update process


## Frequently asked questions

### Is xArm free?

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

### Is LEGO® TECHNIC® CONTROL+ free?

LEGO® TECHNIC® CONTROL+ is free to download, with no in-app purchases.

### Which has better reviews, xArm or LEGO® TECHNIC® CONTROL+?

LEGO® TECHNIC® CONTROL+ is rated higher. xArm averages 3.0 out of 5 from 3 ratings, while LEGO® TECHNIC® CONTROL+ averages 4.8 from 9.3K ratings.

### Do xArm or LEGO® TECHNIC® CONTROL+ have ads?

Neither xArm nor LEGO® TECHNIC® CONTROL+ shows ads.

### Which is updated more often, xArm or LEGO® TECHNIC® CONTROL+?

xArm ships an update every 5 months, and LEGO® TECHNIC® CONTROL+ every 2 months. Most recently, xArm was updated on June 24, 2026 and LEGO® TECHNIC® CONTROL+ on September 26, 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.*