# Buderus ProLibrary vs Night Star Express

The clearest difference is update cadence: Night Star Express at every 2 months 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, Night Star Express every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Buderus ProLibrary | Night Star Express |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 12 MB | 148 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bosch Thermotechnik GmbH](https://appshunter.io/developer/456233209) | [1st Log AG](https://appshunter.io/developer/1382701140) |

## 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


### Night Star Express

[App page](https://appshunter.io/ios/app/night-star-express/id6450203765)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Buderus ProLibrary free?

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

### Is Night Star Express free?

Night Star Express is free to download, with no in-app purchases.

### Do Buderus ProLibrary or Night Star Express have ads?

Neither Buderus ProLibrary nor Night Star Express shows ads.

### Which is updated more often, Buderus ProLibrary or Night Star Express?

Buderus ProLibrary ships an update every 22 months, and Night Star Express every 2 months. Most recently, Buderus ProLibrary was updated on November 2, 2026 and Night Star Express 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.*