# AKS Technical Documentation vs Bohemia Lignum

The clearest difference is update cadence: Bohemia Lignum at every 3 weeks against AKS Technical Documentation's every 8 months. AKS Technical Documentation's advantage is iOS requirement (13.0 vs 15.0). 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.

AKS Technical Documentation ships an update every 8 months, Bohemia Lignum every 3 weeks. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | AKS Technical Documentation | Bohemia Lignum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/aks-technical-documentation/id768090260/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 46 MB | 332 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALU K�NIG STAHL GmbH](https://appshunter.io/developer/768090263) | [Studio 301 s.r.o.](https://appshunter.io/developer/1544672414) |

## What reviewers say

### AKS Technical Documentation

[App page](https://appshunter.io/ios/app/aks-technical-documentation/id768090260)

Access and download technical documentation for building materials on your iPad. Easily find the latest versions of manuals, search content, and bookmark important pages. Keep your documentation up-to-date with one-click updates.

**Highlights:** Mobile access to technical documentation, Downloadable manuals, Latest version updates, Direct access via contents, Full text search, Bookmark functionality, Send pages by email

**Features:** macOS Compatibility

**In-app purchases:** none


### Bohemia Lignum

[App page](https://appshunter.io/ios/app/bohemia-lignum/id6739002058)

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

**In-app purchases:** none


## Frequently asked questions

### Is AKS Technical Documentation free?

AKS Technical Documentation is free to download, with no in-app purchases.

### Is Bohemia Lignum free?

Bohemia Lignum is free to download, with no in-app purchases.

### Do AKS Technical Documentation or Bohemia Lignum have ads?

Neither AKS Technical Documentation nor Bohemia Lignum shows ads.

### Which is updated more often, AKS Technical Documentation or Bohemia Lignum?

AKS Technical Documentation ships an update every 8 months, and Bohemia Lignum every 3 weeks. Most recently, AKS Technical Documentation was updated on October 4, 2026 and Bohemia Lignum on October 2, 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.*