# RadiatorOutput vs Buderus ProLibrary

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.

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

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.

## The numbers

| Metric | RadiatorOutput | Buderus ProLibrary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 22 months |
| Monetization | Free | Free |
| Size | 1 MB | 12 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sebastjan Valic](https://appshunter.io/developer/503687385) | [Bosch Thermotechnik GmbH](https://appshunter.io/developer/456233209) |

## What reviewers say

### RadiatorOutput

[App page](https://appshunter.io/ios/app/radiatoroutput/id503687382)

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:** Vision Pro support

**In-app purchases:** none


### Buderus ProLibrary

[App page](https://appshunter.io/ios/app/buderus-prolibrary/id1454663798)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*