Comparison

Heating Pipe Size vs Pressure Unit Converter

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

Head to head
About

Heating Pipe Size

Features
Read full description

Estimate required pipe diameter of a closed hydronic heating or cooling system in an instant and calculate pressure drop to determine required circulation pump characteristics (flow and head). Easy to use, quick and accurate results. Enter the required heating or cooling output and water flow and return temperatures. Choose pipe material. The recommended pipe diameter is already there, presented as a standard DN. Additionally, choose the recommended or a custom pipe diameter and specify pipe section length and fittings. Results include water flow rate, velocity, pressure drop and pressure drop per 100 m of straight pipe and can be used to determine the parameters of a circulation pump. ## Features: - Simple to use; - Suitable for hydronic (water-based) heating and cooling systems; - Suitable for a large range of heating and cooling outputs; - Predefined pipe materials; - Water temperature range from 1 to 99 ºC; - Completely independent from any manufacturers; - No login needed, no data connection needed; - No data collection; - No subscriptions, one-time purchase only; - Very quick calculation with no delays; ## Possible uses of the application: - Quickly estimate required pipe diameter when designing a hydronic (water-based) closed heating or cooling system. - Quickly determine circulation pump requirements (flow and head), whether it be a new system or a replacement pump. ## Notes: - It is recommended to calculate every section of the piping system separately and additionally check the whole system pressure drop. - The application is only useful for calculations of hydronic (water based) closed heating or cooling systems. Other systems and media are not supported. - Only metric units are supported. - The application, while accurate, is not meant as a complete replacement of specialized software for heating and cooling system design. The application doesn't require data connection. It doesn't require and doesn't collect any personal data. It also doesn't contain third-party ads or code. Also: no in-app purchases, no subscriptions.

About

Pressure Unit Converter

Easily convert pressure measurements between various units with customizable rounding options for both decimal and fractional results. Save and email your conversion history for convenient record-keeping.

Highlights
  • Multiple pressure unit support
  • Decimal and fractional result display
  • Customizable rounding for decimals
  • Customizable fraction rounding
  • Conversion history
  • Email results and history
  • Portrait and landscape support
Features
Read full description

A handy app to convert between pressure units. Supported pressure units: • Atmosphere • Millibar • Bar • Pascal • Hectopascal • Kilopascal • Pounds per square inch (PSI) • Pounds per square foot (PSF) • Kilograms per square meter kgf/m² • Inches of mercury (inHg) • Millimeters of mercury (mmHg) • Torr "Flip" button to easily switch between the "from" and "to" units. Supports fractions. Results are shown in the decimal and fractional forms. App's Settings: - Rounding to the specified number of decimal places: for decimal numbers, you can select the number of decimal places you want to display. By default, the app displays 2 decimal places. To round results to the nearest whole number, select 0 decimal places. - For fractions, you can select rounding to the nearest 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256. By default, the app rounds fractions to the nearest 1/32. If you do not need to round fractions, just select "-". Sends results and history via email. Conversion history. Supports both portrait and landscape orientation.

Screenshots

Heating Pipe Size4 screens
Pressure Unit Converter4 screens

Verdict

The call

The clearest difference is update cadence: Pressure Unit Converter at every 2 months against Heating Pipe Size's every 15 months. Pressure Unit Converter also leads on price ($3.99 vs $5.99) and iOS requirement (6.0 vs 26.0). On ads, in-app purchases and device support 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

Heating Pipe Size costs $5.99 and Pressure Unit Converter $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Heating Pipe Size ships an update every 15 months, Pressure Unit Converter every 2 months. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Heating Pipe Size versus Pressure Unit Converter: the parameters behind the verdict, then further details
ParameterHeating Pipe SizePressure Unit Converter
Price$5.99$3.99 — better
Rating—5.0 (1 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—1 — better
Update frequencyEvery 15 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS26.06.0 — better
Further details — not scored
Size1 MB23 MB
Age rating4+4+
DeveloperSebastjan ValicIntemodino Group s.r.o.

In-app purchases

None

Heating Pipe Size

No in-app purchases

None

Pressure Unit Converter

No in-app purchases

Questions

Is Heating Pipe Size free?
Heating Pipe Size costs $5.99, with no in-app purchases.
Is Pressure Unit Converter free?
Pressure Unit Converter costs $3.99, with no in-app purchases.
Do Heating Pipe Size or Pressure Unit Converter have ads?
Neither Heating Pipe Size nor Pressure Unit Converter shows ads.
Which is updated more often, Heating Pipe Size or Pressure Unit Converter?
Heating Pipe Size ships an update every 15 months, and Pressure Unit Converter every 2 months. Most recently, Heating Pipe Size was updated on October 12, 2026 and Pressure Unit Converter on October 10, 2026.

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