Comparison

Heating Pipe Size vs Pipe Sizer

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

Pipe Sizer

This app helps water piping system engineers and designers quickly and accurately design and analyze piping systems. It offers direct input for flow, friction, or velocity, with live calculation updates and support for various units and pipe materials.

Highlights
  • Quickly size new piping systems
  • Analyze existing piping systems
  • Direct input for flow, friction, or velocity
  • Live calculation updates
  • Supports SI and IP units
  • Works with steel, copper, and PVC pipes
  • Includes fluid data for water and glycols
Features
Read full description

The Pipe Sizer App for iOS has been designed to help water piping system engineers and designers quickly and accurately design new piping systems, and analyze existing pipping systems. Quickly size new and analyze existing piping systems on your iPhone or iPad. • Enter flow, friction rate or velocity numbers directly for maximum accuracy. • Use the sliders for quick calculations. • Calculations update live, giving you quick feedback on your design. • Lock flow rate, friction rate or velocity to size the pipe based on your input criteria. • Works for both SI and IP units. • Supports steel, copper and PVC piping. • Includes fluid data for: • Water • Ethylene glycol (10-90% by volume) • Propylene glycol (10-90% by volume) Put your plastic sizing wheel in the drawer. Have a modern design tool with you wherever you go. Note: This application (App) is provided for use by qualified piping system engineers and designers and is not a substitute for appropriate design services. When in doubt, contact a design professional.

Screenshots

Heating Pipe Size4 screens
Pipe Sizer2 screens

Verdict

The call

The clearest difference is price: Heating Pipe Size at $5.99 against Pipe Sizer's $12.99. Pipe Sizer's advantage is iOS requirement (16.6 vs 26.0). On update cadence, 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 Pipe Sizer $12.99 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, Pipe Sizer every 17 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Heating Pipe Size versus Pipe Sizer: the parameters behind the verdict, then further details
ParameterHeating Pipe SizePipe Sizer
Price$5.99 — better$12.99
Rating—4.8 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 15 months — betterEvery 17 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS26.016.6 — better
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperSebastjan ValicPheinex, LLC

In-app purchases

None

Heating Pipe Size

No in-app purchases

None

Pipe Sizer

No in-app purchases

Questions

Is Heating Pipe Size free?
Heating Pipe Size costs $5.99, with no in-app purchases.
Is Pipe Sizer free?
Pipe Sizer costs $12.99, with no in-app purchases.
Do Heating Pipe Size or Pipe Sizer have ads?
Neither Heating Pipe Size nor Pipe Sizer shows ads.
Which is updated more often, Heating Pipe Size or Pipe Sizer?
Heating Pipe Size ships an update every 15 months, and Pipe Sizer every 17 months. Most recently, Heating Pipe Size was updated on September 9, 2026 and Pipe Sizer on September 20, 2026.

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