Comparison

RadiatorOutput vs Buderus ProLibrary

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

Head to head
About

RadiatorOutput

Calculate radiator heat output based on water and air temperatures. Ensure optimal energy efficiency and cost savings by selecting the correct radiator size for any heating system, including those with low water temperatures. Supports metric units and can also calculate cooling output for convectors and fan-coils.

Highlights
  • Calculate radiator heat output
  • Adjust for water and air temperatures
  • Optimize energy efficiency
  • Supports low water temperature systems
  • Calculate cooling output
  • Metric units only
Features
Read full description

Quickly calculate a radiator's heat output at different water and air temperatures. Select the radiator that fits, based on heat losses and water temperature. Don't undersize or oversize and ensure the best energy efficiency possible.Β  Low water temperature (e.g. with heat pump as heat generator) can greatly increase energy efficiency and keep the cost down, but it still needs to provide enough heat to keep the room or the building warm. That's why larger radiators are needed in such cases. Find out exactly how large quickly using this app. Anywhere, anytime, fast and simple. ** Note: metric units only. *** This app is totally free - no ads, no in-app purchases. No account needed, no log-ins, no user data needed nor collected. *** A radiator's heat output is highly dependent on temperature of water entering and leaving the radiator. Nominal heat output of a radiator can be found in a catalogue or a technical brochure. The nominal heat output is valid only at the conditions specified in the catalogue. This application will calculate the heat output of the selected radiator at conditions specified by the user. This is useful for the selection of the right size of a radiator when designing a new heating system, as modern heating systems tend to use lower water temperatures than those specified in catalogues. The reason is simple: lower temperatures mean higher energy efficiency and lower cost. The application can also be used for calculating the cooling output of convectors and fan-coils at various conditions. The application is available in English, French, German and Italian languages. The application does not contain ads.

About

Buderus ProLibrary

This app offers systematic support for installing and maintaining Buderus systems. Scan product data plates to access specific, comprehensive information and view concise videos detailing processes.

Highlights
  • Systematic installation and maintenance support
  • Concise instructional videos
  • Product data plate scanning
  • Specific product information retrieval
  • Comprehensive application details
Features
Read full description

Installation and maintenance using a systematic approach. The Buderus ProLibrary app provides you with efficient support during the maintenance and installation of Buderus systems. Concise videos display detailed processes. When using the app, scan the code on the data plate of the Buderus product. You will then receive specific and comprehensive information for your particular application.

Screenshots

RadiatorOutput2 screens
Buderus ProLibrary4 screens

Verdict

The call

The clearest difference is update cadence: RadiatorOutput at every 8 months against Buderus ProLibrary's every 22 months. RadiatorOutput also leads on device support (4 vs 2). Buderus ProLibrary's advantage is iOS requirement (12.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RadiatorOutput ships an update every 8 months, Buderus ProLibrary every 22 months. The most recent releases landed on October 31, 2026 and September 17, 2026 respectively.

Scorecard3 real differences Β· 5 level
RadiatorOutput versus Buderus ProLibrary: the parameters behind the verdict, then further details
ParameterRadiatorOutputBuderus ProLibrary
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 8 months β€” betterEvery 22 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac β€” betteriPhone, iPod
Requires iOS15.012.0 β€” better
Further details β€” not scored
Size1 MB12 MB
Age rating4+4+
DeveloperSebastjan ValicBosch Thermotechnik GmbH

Customer experience

RadiatorOutput

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Buderus ProLibrary

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RadiatorOutput

No in-app purchases

None

Buderus ProLibrary

No in-app purchases

Questions

Is RadiatorOutput free?
RadiatorOutput is free to download, with no in-app purchases.
Is Buderus ProLibrary free?
Buderus ProLibrary is free to download, with no in-app purchases.
Do RadiatorOutput or Buderus ProLibrary have ads?
Neither RadiatorOutput nor Buderus ProLibrary shows ads.
Which is updated more often, RadiatorOutput or Buderus ProLibrary?
RadiatorOutput ships an update every 8 months, and Buderus ProLibrary every 22 months. Most recently, RadiatorOutput was updated on October 31, 2026 and Buderus ProLibrary on September 17, 2026.

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