Comparison

TapTag Howard vs GasCalc Pro

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

Head to head
About

TapTag Howard

Features
Read full description

Identification of sampling location โ€“ Using the GPS from the mobile device, the application can automatically narrow station search results to include only those stations within the current area of the mobile device. Other selections allow for filtering stations by company, station name, station number, or a combination thereof. This reduces the time required to look up correct station numbers and names, while vastly increasing the accuracy of station identification.

About

GasCalc Pro

Features
Read full description

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 โ€“ our app provides all the essential tools directly on your iPhone. Main features: โ€ข Comprehensive calculation modules: โ€ข Gas flow calculator: Determine flow rate, velocity, and more. โ€ข Pipe diameter calculator: Find the optimal pipe size. โ€ข Design pressure calculator: Determine safety-relevant system pressures. โ€ข Cost estimator: Calculate operating costs and compare scenarios. โ€ข Fuel comparison: Analyze the efficiency and costs of different fuels. โ€ข Integrated unit converter: Effortlessly convert between units of pressure, length, mass, temperature, volume, and flow โ€“ save time and avoid mistakes. โ€ข Intuitive & modern interface: A clear, user-friendly design enables quick onboarding and efficient work. Results are displayed clearly and comprehensibly. โ€ข 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

TapTag Howard4 screens
GasCalc Pro4 screens

Verdict

The call

The clearest difference is update cadence: TapTag Howard at every 6 weeks against GasCalc Pro's every 7 months. TapTag Howard also leads on iOS requirement (16.0 vs 26.5). 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

TapTag Howard ships an update every 6 weeks, GasCalc Pro every 7 months. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

Scorecard2 real differences ยท 4 level
TapTag Howard versus GasCalc Pro: the parameters behind the verdict, then further details
ParameterTapTag HowardGasCalc Pro
PriceFreeFree
Update frequencyEvery 6 weeks โ€” betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 โ€” better26.5
Further details โ€” not scored
Size75 MB3 MB
Age rating4+4+
DeveloperDavid ParksNergiz Calhan

In-app purchases

None

TapTag Howard

No in-app purchases

None

GasCalc Pro

No in-app purchases

Questions

Is TapTag Howard free?
TapTag Howard is free to download, with no in-app purchases.
Is GasCalc Pro free?
GasCalc Pro is free to download, with no in-app purchases.
Do TapTag Howard or GasCalc Pro have ads?
Neither TapTag Howard nor GasCalc Pro shows ads.
Which is updated more often, TapTag Howard or GasCalc Pro?
TapTag Howard ships an update every 6 weeks, and GasCalc Pro every 7 months. Most recently, TapTag Howard was updated on October 15, 2026 and GasCalc Pro on October 25, 2026.

Other comparisons