# BayGUS vs Der Kestner

The clearest difference is update cadence: BayGUS at every 3 days against Der Kestner's every 3 weeks. BayGUS also leads on review sentiment (100% vs 73%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. BayGUS sells 4 in-app purchases, starting at $1.49 per month and Der Kestner sells 8 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

BayGUS ships an update every 3 days, Der Kestner every 3 weeks. The most recent releases landed on August 23, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | BayGUS | Der Kestner |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 73.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 37 MB | 107 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Mayr](https://appshunter.io/developer/1477487057) | [Verlag Karin Kestner GmbH](https://appshunter.io/developer/1673366576) |

## What reviewers say

### BayGUS

[App page](https://appshunter.io/ios/app/baygus/id1628878366)

Quickly look up and learn nearly 700 sign language gestures with video demonstrations. Practice gestures in both directions, filter by meaning or gesture, and save favorites for easy access. This app is available offline, making it ideal for classroom use.

**Highlights:** Nearly 700 sign language gestures with videos, Adjustable playback speed (half, normal, double), Filter and search for gestures, Favorites list for quick access, Learn and practice gestures in both directions, Offline availability

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Espresso / Monat spendieren | $1.49 | per month |
| Einen Kaffee spendieren | $2.99 | one-time |
| Eine Pizza spendieren | $5.99 | one-time |
| Einen Burger spendieren | $8.99 | one-time |


### Der Kestner

[App page](https://appshunter.io/ios/app/der-kestner-dgs/id6445823997)

This app is a comprehensive dictionary for German Sign Language (DGS), offering over 29,000 terms and 400 sign videos. It includes learning tools, custom list creation, and image editing for educational materials. Accessible across devices with regular updates.

**Highlights:** Extensive DGS vocabulary with over 29,000 terms, 400+ sign language videos, Vocabulary trainer and custom list creation, Image editor for creating educational materials, Search and filter functions, Cross-device accessibility (app and web)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basis | $3.99 | per month |
| Premium | $6.99 | per month |
| Für Familien | $11.99 | per month |
| Veraltetes Abo | $14.99 | per month |
| Stufe 5 | $39.99 | per month |
| Basis | $44.90 | per year |
| Premium | $69.90 | per year |
| Für Familien | $119.99 | per year |


## Frequently asked questions

### Is BayGUS free?

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

### Is Der Kestner free?

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

### Do BayGUS or Der Kestner have ads?

Neither BayGUS nor Der Kestner shows ads.

### Which is updated more often, BayGUS or Der Kestner?

BayGUS ships an update every 3 days, and Der Kestner every 3 weeks. Most recently, BayGUS was updated on August 23, 2026 and Der Kestner on September 11, 2026.

---

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