# Belimo Assistant 2 vs U

The clearest difference is rating: Belimo Assistant 2 at 3.4 against U's 1.0. Belimo Assistant 2 also leads on in-app purchases (none vs 3) and ratings volume (10 vs 1). U's advantage is update cadence (every 9 days vs every 5 weeks) and iOS requirement (12.0 vs 17.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. U sells 3 in-app purchases, starting at $2.99 per 7 days. Belimo Assistant 2 asks for nothing beyond the download.

Belimo Assistant 2 holds the better App Store score, 3.4 against 1.0. That said, the two scores are not equally well evidenced: Belimo Assistant 2 has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

Belimo Assistant 2 ships an update every 5 weeks, U every 9 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Belimo Assistant 2 | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (10 ratings)](https://appshunter.io/ios/app/belimo-assistant-2/id6475810004/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/u-bacnet/id6751057296/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 125 MB | 31 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) | [IMMA MOLINA](https://appshunter.io/developer/1833286076) |

## What reviewers say

### Belimo Assistant 2

[App page](https://appshunter.io/ios/app/belimo-assistant-2/id6475810004)

This app allows for the setup, operation, and troubleshooting of Belimo devices like actuators and valves using a smartphone or tablet. It offers features for checking settings, monitoring device status, and generating reports.

**Highlights:** Device setting parameter modification, Display identification data, MP-Bus, BACnet, Modbus, TCP/IP addressing, Guided parameter setup, Copy/Paste device configurations, Live trending and local override, Device health and operation monitoring, Digital report generation

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-bacnet/id6751057296)

This tool helps building automation professionals discover and interact with BACnet/IP devices on their local network. It allows users to scan for devices, view objects, and read properties through an intuitive interface.

**Highlights:** Automatic BACnet/IP device scanning, View and filter discovered devices, Browse device objects, Read device properties, User-friendly interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| U-BACnet Premium | $2.99 | per 7 days |
| U-BACnet Premium | $9.99 | per month |
| U-BACnet Premium | $99.99 | per year |


## Frequently asked questions

### Is Belimo Assistant 2 free?

Belimo Assistant 2 is free to download, with no in-app purchases.

### Is U free?

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

### Which has better reviews, Belimo Assistant 2 or U?

Belimo Assistant 2 is rated higher. Belimo Assistant 2 averages 3.4 out of 5 from 10 ratings, while U averages 1.0 from 1 ratings.

### Do Belimo Assistant 2 or U have ads?

Neither Belimo Assistant 2 nor U shows ads.

### Which is updated more often, Belimo Assistant 2 or U?

Belimo Assistant 2 ships an update every 5 weeks, and U every 9 days. Most recently, Belimo Assistant 2 was updated on November 5, 2026 and U on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*