# Lambertus+ vs Sackmann digital

Lambertus+ and Sackmann digital are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Lambertus+ ships an update every 5 months, Sackmann digital every 3 months. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Lambertus+ | Sackmann digital |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 18 MB | 18 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lambertus-Verlag GmbH](https://appshunter.io/developer/873636927) | [Verlagsanstalt Handwerk GmbH](https://appshunter.io/developer/441254977) |

## What reviewers say

### Lambertus+

[App page](https://appshunter.io/ios/app/lambertus-plus/id873636924)

Access a digital library of specialized publications with advanced search and navigation. Annotate content with text, images, or audio. Organize your reading with bookmarks and a personal work desk for efficient research.

**Highlights:** Electronic table of contents, Fast and intelligent search, Work desk for full publication search, Add bookmarks, Personal annotations (text, image, audio), Attractive design

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

**In-app purchases:** none


### Sackmann digital

[App page](https://appshunter.io/ios/app/sackmann-digital/id6449965700)

This app provides a digital, interactive version of a vocational training textbook. It allows users to access an e-book with enhanced search, annotation, and multimedia features for exam preparation. Access is currently limited to a select customer group with a provided code.

**Highlights:** Interactive e-book access, Intelligent search functionality, Annotated bookmarks, Add text, image, and audio annotations, Highlight topics for review, Attach photos of class notes

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

**In-app purchases:** none


## Frequently asked questions

### Is Lambertus+ free?

Lambertus+ is free to download, with no in-app purchases.

### Is Sackmann digital free?

Sackmann digital is free to download, with no in-app purchases.

### Do Lambertus+ or Sackmann digital have ads?

Neither Lambertus+ nor Sackmann digital shows ads.

### Which is updated more often, Lambertus+ or Sackmann digital?

Lambertus+ ships an update every 5 months, and Sackmann digital every 3 months. Most recently, Lambertus+ was updated on September 16, 2026 and Sackmann digital on September 20, 2026.

---

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