Comparison

FusionAir vs Belimo Assistant 2

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FusionAir

Features
Read full description

Innovative FusionAir Smart Sensor enhances building occupant experience, increases energy efficiency, and offers safe indoor air quality. The mobile app provides a remote mirroring experience to all FusionAir functions so that changes can be made without a need to touch the sensor, and can be used with a display less model. LED indications can be programmed in the strategy. One example could be to give clear feedback of the safety status in the room under various circumstances such as CO2 levels.

About

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 parameters, monitoring device status, and generating reports.

Highlights
  • Device parameter modification
  • Identification data display
  • MP-Bus, BACnet, Modbus addressing
  • Guided parameter setup
  • Configuration copy/paste
  • Live trending and local override
  • Device health and operation monitoring
  • Digital report generation
Read full description

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+

Screenshots

FusionAir4 screens
Belimo Assistant 24 screens

Verdict

The call

The clearest difference is update cadence: Belimo Assistant 2 at every 5 weeks against FusionAir's every 12 months. FusionAir's advantage is iOS requirement (8.1 vs 17.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

FusionAir ships an update every 12 months, Belimo Assistant 2 every 5 weeks. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
FusionAir versus Belimo Assistant 2: the parameters behind the verdict, then further details
ParameterFusionAirBelimo Assistant 2
PriceFreeFree
Rating—3.4 (10 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 12 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.1 — better17.0
Further details — not scored
Size40 MB125 MB
Age rating4+4+
DeveloperCylon Controls LimitedBELIMO Automation AG

In-app purchases

None

FusionAir

No in-app purchases

None

Belimo Assistant 2

No in-app purchases

Questions

Is FusionAir free?
FusionAir is free to download, with no in-app purchases.
Is Belimo Assistant 2 free?
Belimo Assistant 2 is free to download, with no in-app purchases.
Do FusionAir or Belimo Assistant 2 have ads?
Neither FusionAir nor Belimo Assistant 2 shows ads.
Which is updated more often, FusionAir or Belimo Assistant 2?
FusionAir ships an update every 12 months, and Belimo Assistant 2 every 5 weeks. Most recently, FusionAir was updated on October 4, 2026 and Belimo Assistant 2 on October 17, 2026.

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