Comparison

Heating Pipe Size vs KSB BOA

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

KSB BOA

Features
Read full description

KSB’s selection app for balancing valves of the BOA-Control series The app supports you in planning your hydraulic HVAC system. It makes the selection of static and dynamic balancing valves intuitive and straightforward. After entering system parameters such as the volume flow rate Q and differential pressure DP or, alternatively, the power required as well as the supply and return temperature, static balancing valves, differential pressure regulators and pressure-independent control valves (PICV) are conveniently selected. Determine the optimum valve sizes and presettings for your applications. Available type series: -BOA-Control SBV -BOA-Control / BOA-Control IMS -BOA-Control DPR -BOA-Control PIC

Screenshots

Heating Pipe Size4 screens
KSB BOA4 screens

Verdict

The call

The clearest difference is price: KSB BOA at Free against Heating Pipe Size's $5.99. KSB BOA also leads on update cadence (every 2 months vs every 15 months) and iOS requirement (15.2 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

KSB BOA is free to download; Heating Pipe Size costs $5.99 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, KSB BOA every 2 months. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 3 level
Heating Pipe Size versus KSB BOA: the parameters behind the verdict, then further details
ParameterHeating Pipe SizeKSB BOA
Price$5.99Free — better
Update frequencyEvery 15 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.015.2 — better
Further details — not scored
Size1 MB8 MB
Age rating4+4+
DeveloperSebastjan ValicKSB SE & Co. KGaA

In-app purchases

None

Heating Pipe Size

No in-app purchases

None

KSB BOA

No in-app purchases

Questions

Is Heating Pipe Size free?
Heating Pipe Size costs $5.99, with no in-app purchases.
Is KSB BOA free?
KSB BOA is free to download, with no in-app purchases.
Do Heating Pipe Size or KSB BOA have ads?
Neither Heating Pipe Size nor KSB BOA shows ads.
Which is updated more often, Heating Pipe Size or KSB BOA?
Heating Pipe Size ships an update every 15 months, and KSB BOA every 2 months. Most recently, Heating Pipe Size was updated on September 9, 2026 and KSB BOA on September 12, 2026.

Other comparisons