Comparison

FlowCheck vs Helios FDR

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

Head to head
About

FlowCheck

Features
Read full description

Full transparency at all times about your TROX drive solution and the operation of your system. The TROX Flow Check app turns your smartphone into a wireless on-site control for the latest generation of VAV, flap and valve actuators! Efficient commissioning, quick functional testing in operation, handy and always ready for service. Easily adapt when used. Document and send the setting and operating data.

About

Helios FDR

This application allows users to intuitively customize and monitor their Helios differential humidity control systems. Users can define humidity and temperature setpoints, configure weekly programs for sleep cycles, and log data for up to four weeks. It is designed to manage multiple FDR systems.

Highlights
  • Customize humidity and temperature setpoints
  • Configure weekly programs for sleep cycles
  • Log and export temperature/humidity data
  • Manage multiple FDR systems
  • Define minimum room temperature
Features
Read full description

With the help of this app, you can easily and intuitively customize the Helios differential humidity control system (FDR) to your individual requirements and monitor the humidity and temperature curve. The key functions of the app โ€ข Definition of limit and set point values for the room humidity. โ€ข Definition of the run-on time after pressing the manual button. โ€ข Configuration of the weekly program to define desired sleep cycles. โ€ข Definition of the minimum room temperature. โ€ข Data on the temperature and humidity curve can be logged and exported over a period of 4 weeks. โ€ข Management of any number of FDR systems within the app. More about Helios FDR Damp rooms, such as cellars, washrooms and garages, are a major problem and often difficult to get under control. With the FDR differential humidity control system, Helios offers an advanced and flexible solution that combines a control system and freely selectable fan to solve the problem both sustainably and efficiently. FDR continuously measures the temperature and humidity inside and outside. The intelligent control system then decides whether there are suitable conditions for ventilation, so that optimum and resource-saving operation is always guaranteed.

Screenshots

FlowCheck4 screens
Helios FDR4 screens

Verdict

The call

The clearest difference is update cadence: Helios FDR at every 7 months against FlowCheck's every 15 months. Helios FDR also leads on iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

FlowCheck ships an update every 15 months, Helios FDR every 7 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard2 real differences ยท 6 level
FlowCheck versus Helios FDR: the parameters behind the verdict, then further details
ParameterFlowCheckHelios FDR
PriceFreeFree
Positive reviewsโ€”0.0% of reviews
Update frequencyEvery 15 monthsEvery 7 months โ€” better
AdsNoNo
In-app purchasesNoNo
Monetizationโ€”Free
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.012.0 โ€” better
Further details โ€” not scored
Size15 MB78 MB
Age rating4+4+
DeveloperTROX GmbHHelios Ventilatoren GmbH + Co KG

In-app purchases

None

FlowCheck

No in-app purchases

None

Helios FDR

No in-app purchases

Questions

Is FlowCheck free?
FlowCheck is free to download, with no in-app purchases.
Is Helios FDR free?
Helios FDR is free to download, with no in-app purchases.
Do FlowCheck or Helios FDR have ads?
Neither FlowCheck nor Helios FDR shows ads.
Which is updated more often, FlowCheck or Helios FDR?
FlowCheck ships an update every 15 months, and Helios FDR every 7 months. Most recently, FlowCheck was updated on November 7, 2026 and Helios FDR on November 3, 2026.

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