Comparison

Duct Sensor Assistant vs RPEMS

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

Head to head
About

Duct Sensor Assistant

Features
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Via the Belimo Duct Sensor Assistant App it is possible to extend the range of use and to adapt the configuration individually to application requirements. A Bluetooth® dongle is required for configuration via the Belimo Duct Sensor Assistant App (sold separately, A-22G-A05). Features: • Communication via Bluetooth BLE • Bluetooth Dongle A-22G-A05 required, which will communicate with the sensor via a Micro-USB-connector • Can be used for the following sensors: 22ADP-.., 22DTH-..5.., 22DTH-..6.., 22DC-..3, 22DTC-.., 22DTM-.., 22DCV-.., 22DCM-.., 22DCK-.., 22UTH-..50X, 22UTH-..60X • Supported languages DE, EN, FR, IT, ES, PT Configuration options: • Individual configuration of output signals • Setting of different measuring ranges • Additional adjustment of offset values • Parameterization of Live-Zero-Signal (2..10 V etc.) and the system of units • Setting options for display indications • Customized parameterization of traffic-light function (TLF) • Extension of the physical bus address • Store settings on the mobile device and load on other sensors • Representation and output of the differential pressure as a volume flow value

About

RPEMS

Features
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RPEMS was developed by RCT Power to facilitate users to use and monitor energy storage systems. RCT Power is an energy storage system company integrating R&D, production and sales. Its products and technologies come from Lake Constance in Germany. Its products cover household, industrial and grid energy storage.

Screenshots

Duct Sensor Assistant4 screens
RPEMS3 screens

Verdict

The call

Duct Sensor Assistant and RPEMS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Duct Sensor Assistant ships an update every 6 months, RPEMS every 10 months. The most recent releases landed on September 16, 2026 and May 13, 2026 respectively.

ScorecardNo meaningful differences
Duct Sensor Assistant versus RPEMS: the parameters behind the verdict, then further details
ParameterDuct Sensor AssistantRPEMS
PriceFreeFree
Update frequencyEvery 6 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.012.0
Further details — not scored
Size31 MB13 MB
Age rating4+4+
DeveloperBELIMO Automation AGJiangsu RCT Power Energy Technology Co., Ltd

In-app purchases

None

Duct Sensor Assistant

No in-app purchases

None

RPEMS

No in-app purchases

Questions

Is Duct Sensor Assistant free?
Duct Sensor Assistant is free to download, with no in-app purchases.
Is RPEMS free?
RPEMS is free to download, with no in-app purchases.
Do Duct Sensor Assistant or RPEMS have ads?
Neither Duct Sensor Assistant nor RPEMS shows ads.
Which is updated more often, Duct Sensor Assistant or RPEMS?
Duct Sensor Assistant ships an update every 6 months, and RPEMS every 10 months. Most recently, Duct Sensor Assistant was updated on September 16, 2026 and RPEMS on May 13, 2026.

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