Belimo Assistant 2 vs U
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Belimo Assistant 2
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.
- 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
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Belimo Assistant 2 enables wired and wireless setup, on-site operation, and troubleshooting of Belimo damper actuators, control valves, sensors and meters with smartphone and tablet. Key features: • Check and modify device setting parameters • Display identification data: device type, position, designation, serial number, bus address • Addressing (MP-Bus, BACnet, Modbus, TCP/IP) • Setup: guided parameter setup for your device • Copy/Paste configuration: replicate settings for same device type • Live Trend: perform local override and live trending with easy share function • Health: monitor overall device and operation status. E.g. Power supply, Bus state, Sensor state, etc. • Operation: monitor device KPIs with live updates • Reports: retrieve digital reports of your device with easy share function. E.g. Calibration certificate, Commissioning report • Export Device Configuration: create log file with easy share function • In-app language adjustment (EN/DE/FR/IT/ES/CN/RU/TR) Accessories: • LINK.10 (Converter USB / Bluetooth / NFC) • ZTH EU/US/AP (Service tool and Converter USB / MP-Bus) • ZIP-BT-NFC (Converter Bluetooth / NFC) Notes: • The App can be installed on iPhones or iPads with iOS 18+
U
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.
- Automatic BACnet/IP device scanning
- View and filter discovered devices
- Browse device objects
- Read device properties
- User-friendly interface
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U-BACnet is a powerful tool for discovering and interacting with BACnet/IP devices directly from your device. -Automatically scans your local network for BACnet devices -View and filter discovered devices -Browse device objects and read properties -User-friendly interface for building automation professionals Whether you're a building engineer, technician, or BACnet developer, U-BACnet helps streamline diagnostics and device discovery in the field. Privacy Policy: https://ubacnet.com/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Belimo Assistant 2 | U |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (10 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 5 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 125 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | BELIMO Automation AG | IMMA MOLINA |
Customer experience
Belimo Assistant 2
U
In-app purchases
Belimo Assistant 2
No in-app purchases
U
- U-BACnet Premium$2.997 Days
- U-BACnet Premium$9.991 Month
- U-BACnet Premium$99.991 Year









