Reflex Pro App vs h,x Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reflex Pro App
This app provides instant calculations for pressure maintenance in heating, solar, and hot water systems. It helps define pressures and account for water hardness, aiding in project surveys and on-site consultations for accurate system assessments.
- Pressure maintenance calculations
- Expansion vessel calculation
- Upstream and filling pressure definition
- Water hardness consideration
- VDI 2035 compliance
- On-site project surveys
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Let your smart phone help you! You can now get answers to pressure maintenance queries in heating, solar power and hot water systems at the touch of a button – even in the darkest boiler room! The Reflex Pro App allows you to calculate in situ expansion vessels, define upstream and filling pressures, and take appropriate steps with respect to the hardness of water used to fill and top up systems in accordance with VDI 2035. Ideal for project surveys, initial consultations, and producing highly accurate calculations on site.
h,x Calculator
This software calculates air condition changes during adiabatic or isothermal humidification processes. It determines air states before and after humidification, humidification power, and heating power. The app supports both metric and imperial units.
- Calculate air condition changes
- Determine humidification power
- Calculate heating power
- Generate h,x diagram
- Metric and imperial unit support
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Software zur Berechnung von Zustandsänderungen der Luft bei adiabaten oder isothermen Befeuchtungsprozessen. Berechnet werden Luftzustände vor oder nach der Befeuchtung, die Befeuchtungsleistung, die Heizleistung (bei adiabater Luftbefeuchtung) sowie das der Berechnung zugrundeliegende h,x-Diagramm. Die Software kann eine Berechnung im metrischen wie auch im imperialen Einheitensystem durchführen.
Screenshots
Verdict
The clearest difference is iOS requirement: h,x Calculator at 7.0 against Reflex Pro App's 15.0. On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | Reflex Pro App | h,x Calculator |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 44.4% of reviews | — |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | ConSoft | Condair GmbH |
Customer experience
Reflex Pro App
h,x Calculator
In-app purchases
Reflex Pro App
No in-app purchases
h,x Calculator
No in-app purchases
Questions
Is Reflex Pro App free?
Is h,x Calculator free?
Do Reflex Pro App or h,x Calculator have ads?
Which is updated more often, Reflex Pro App or h,x Calculator?
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