KAN Quick Surface vs GasCalc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KAN Quick Surface
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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.
GasCalc Pro
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Master complex gas calculations with ease! Gas Flow Calc is the ultimate all-in-one app for engineers, technicians, and professionals who need precise and fast results for gas flow systems. Whether in the office or on-site – our app provides all the essential tools directly on your iPhone. Main features: • Comprehensive calculation modules: • Gas flow calculator: Determine flow rate, velocity, and more. • Pipe diameter calculator: Find the optimal pipe size. • Design pressure calculator: Determine safety-relevant system pressures. • Cost estimator: Calculate operating costs and compare scenarios. • Fuel comparison: Analyze the efficiency and costs of different fuels. • Integrated unit converter: Effortlessly convert between units of pressure, length, mass, temperature, volume, and flow – save time and avoid mistakes. • Intuitive & modern interface: A clear, user-friendly design enables quick onboarding and efficient work. Results are displayed clearly and comprehensibly. • Multilingual support: Fully localized in German, English, Spanish, French, Italian, and Turkish. Gas Flow Calc was developed to simplify your daily work and boost your productivity. Download the app today and experience the future of gas calculations!
Screenshots
Verdict
The clearest difference is iOS requirement: KAN Quick Surface at 11.0 against GasCalc Pro's 26.5. 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.
KAN Quick Surface ships an update every 11 months, GasCalc Pro every 7 months. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.
| Parameter | KAN Quick Surface | GasCalc Pro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 29 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | KAN-therm GmbH | Nergiz Calhan |
In-app purchases
KAN Quick Surface
No in-app purchases
GasCalc Pro
No in-app purchases
Questions
Is KAN Quick Surface free?
Is GasCalc Pro free?
Do KAN Quick Surface or GasCalc Pro have ads?
Which is updated more often, KAN Quick Surface or GasCalc Pro?
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