# Lernserver vs Aachen

The clearest difference is in-app purchases: Aachen at none against Lernserver's 4. Aachen also leads on update cadence (daily vs every 17 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lernserver sells 3 one-off in-app purchases. Aachen asks for nothing beyond the download.

Lernserver ships an update every 17 months, Aachen daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | Lernserver | Aachen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 17 months | **Daily** |
| Monetization | — | Free |
| Size | 58 MB | 11 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lernserver](https://appshunter.io/developer/1481559642) | [soundgarden audioguidance GmbH](https://appshunter.io/developer/1560247386) |

## What reviewers say

### Lernserver

[App page](https://appshunter.io/ios/app/lernserver/id1481559643)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Testeingabe (LS-Team) | $1.99 | one-time |
| Diagnose (kompakt) | $3.99 | one-time |
| Diagnose und Testeingabe | $5.99 | one-time |


### Aachen

[App page](https://appshunter.io/ios/app/aachen-off-track/id6784257964)

Explore historical backgrounds, anecdotes, and current developments outside the city center. The app automatically plays audio at each location, allowing you to keep your phone in your pocket and focus on discovery. It combines knowledge and exploration in an engaging edutainment format.

**Highlights:** Automatic audio playback at geolocated stations, Explore historical backgrounds and current developments, Discover hidden gems and known landmarks, Spontaneous detours and new perspectives, Map with current location tracking, Edutainment format for understanding urban spaces

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

**In-app purchases:** none


## Frequently asked questions

### Is Lernserver free?

Lernserver is free to download, with in-app purchases available.

### Is Aachen free?

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

### Do Lernserver or Aachen have ads?

Neither Lernserver nor Aachen shows ads.

### Which is updated more often, Lernserver or Aachen?

Lernserver ships an update every 17 months, and Aachen daily. Most recently, Lernserver was updated on October 25, 2026 and Aachen on October 25, 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.*