Comparison

Herz Stromax R vs KAN Quick Surface

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

Head to head
About

Herz Stromax R

This application calculates optimal balancing valve presets for HVAC systems. It visually highlights valves within the optimal operational range, replacing manual data sheet lookups with an intuitive interface. All calculations are verified and official.

Highlights
  • Optimal valve preset calculation
  • HVAC system condition input
  • Visual operational range highlighting
  • Replaces data sheet procedures
  • Verified laboratory values
Features
Read full description

Herz STROMAX R App is balancing valves calculator. App provides optimal valve preset for HVAC system conditions input (pressure drop and flow rate). The valves within optimal operational range are highlighted in green color. Herz STROMAX R app provides visual representation according to the operational conditions, replacing the usual procedure of preset values determination using data sheets with diagrams. Herz STROMAX R is official Herz Armaturen GmbH tool for preset calculations, and all values are verified in testing laboratory in Vienna. For further information, please contact technical support of the local representative. List of local representatives and subsidiaries is available on the official www.herz.eu web site.

About

KAN Quick Surface

Features
Read full description

KAN Quick Surface mobile app supports you in everyday work, speeding up significantly the process of surface system installation. App features: · Enables selection of floor, wall and ceiling installations. · Immediately controls the system operation parameters. · Enables assessment of heating and cooling power of individual installation. · Precise results - calculates the flows through loops required for hydraulic adjustment. · Enables selection of pipe spacing in a simple way. · Always available, wherever you are.

Screenshots

Herz Stromax R4 screens
KAN Quick Surface2 screens

Verdict

The call

The clearest difference is iOS requirement: Herz Stromax R at 11.0 against KAN Quick Surface'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

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

Herz Stromax R ships an update every 7 months, KAN Quick Surface every 13 months. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Herz Stromax R versus KAN Quick Surface: the parameters behind the verdict, then further details
ParameterHerz Stromax RKAN Quick Surface
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 7 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size4 MB36 MB
Age rating4+4+
DeveloperAleksandar JovanovicKAN-therm GmbH

In-app purchases

None

Herz Stromax R

No in-app purchases

None

KAN Quick Surface

No in-app purchases

Questions

Is Herz Stromax R free?
Herz Stromax R is free to download, with no in-app purchases.
Is KAN Quick Surface free?
KAN Quick Surface is free to download, with no in-app purchases.
Do Herz Stromax R or KAN Quick Surface have ads?
Neither Herz Stromax R nor KAN Quick Surface shows ads.
Which is updated more often, Herz Stromax R or KAN Quick Surface?
Herz Stromax R ships an update every 7 months, and KAN Quick Surface every 13 months. Most recently, Herz Stromax R was updated on October 2, 2026 and KAN Quick Surface on October 24, 2026.

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