# Buderus ProLibrary vs OEG Buddy

The clearest difference is update cadence: OEG Buddy at fortnightly against Buderus ProLibrary's every 22 months. Buderus ProLibrary's advantage is iOS requirement (12.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

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

Buderus ProLibrary ships an update every 22 months, OEG Buddy fortnightly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Buderus ProLibrary | OEG Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 12 MB | 71 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bosch Thermotechnik GmbH](https://appshunter.io/developer/456233209) | [OEG GmbH](https://appshunter.io/developer/1808380868) |

## What reviewers say

### 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


### OEG Buddy

[App page](https://appshunter.io/ios/app/oeg-buddy/id6744603457)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Buderus ProLibrary free?

Buderus ProLibrary is free to download, with no in-app purchases.

### Is OEG Buddy free?

OEG Buddy is free to download, with no in-app purchases.

### Do Buderus ProLibrary or OEG Buddy have ads?

Neither Buderus ProLibrary nor OEG Buddy shows ads.

### Which is updated more often, Buderus ProLibrary or OEG Buddy?

Buderus ProLibrary ships an update every 22 months, and OEG Buddy fortnightly. Most recently, Buderus ProLibrary was updated on November 2, 2026 and OEG Buddy on October 30, 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.*