Combi Valve Sizer vs Thermokon USEapp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Combi Valve Sizer
This app simplifies the selection of specific HVAC components. It guides users through choosing the correct valve and actuator, calculates flow rates, and assists with presetting and commissioning. Users can also tag components and download reports.
- Guided valve and actuator selection
- Valve sizing and flow calculation
- Valve presetting calculation
- Tagging valve location and designation
- Commissioning check with reports
- Data sheet downloads
- Report sharing
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Combi Valve Sizer app from Siemens helps to select the right Acvatix PICV (combi valve) and matching actuator easily. Features: - Guided valve and actuator selection - Valve sizing - Calculation of maximum volumetric flow - Calculation of valve presetting - Tagging the valve location and designation - Commissioning check with report - Data sheets download - Sharing of reports and documents
Thermokon USEapp
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USEapp for individual configuration Via USEapp 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 USEapp (sold separately). - Communication via Bluetooth® Low-Energy-Module (BLE) of your mobile device - Individual configuration of output signals - Setting of different measuring ranges - Additional adjustment of offset values - Parameterization of Live-Zero-Signal (1..10 V etc.) - Setting options for display indications - Customized parameterization of traffic-light function (TLF) - Setting of relay performance and thresholds - Modbus address offset (extension) - Adjustment of maintenance intervals
Screenshots
Verdict
The clearest difference is update cadence: Thermokon USEapp at every 3 months against Combi Valve Sizer's every 9 months. Combi Valve Sizer's advantage is iOS requirement (7.0 vs 13.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Combi Valve Sizer ships an update every 9 months, Thermokon USEapp every 3 months. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.
| Parameter | Combi Valve Sizer | Thermokon USEapp |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 50 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Siemens AG | Thermokon Sensortechnik GmbH |
In-app purchases
Combi Valve Sizer
No in-app purchases
Thermokon USEapp
No in-app purchases
Questions
Is Combi Valve Sizer free?
Is Thermokon USEapp free?
Do Combi Valve Sizer or Thermokon USEapp have ads?
Which is updated more often, Combi Valve Sizer or Thermokon USEapp?
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