# BayGUS vs GuK

The clearest difference is iOS requirement: GuK at 12.0 against BayGUS's 15.0. On price, review sentiment, update cadence and ads there is nothing between them.

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

BayGUS ships an update every 3 days, GuK every 5 days. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | BayGUS | GuK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 37 MB | 186 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Mayr](https://appshunter.io/developer/1477487057) | [Deutsches Down-Syndrom InfoCenter](https://appshunter.io/developer/1792864018) |

## 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 |


### GuK

[App page](https://appshunter.io/ios/app/guk/id6741070160)

This app supports children learning spoken language through sign language. It offers over 200 video-based signs, organized by topic or alphabetically, with interactive learning modes and songs. Designed for parents, educators, and therapists to aid communication development.

**Highlights:** Over 200 video-based signs, Searchable sign library, Customizable sign lists, Quiz and practice modes, Songs with accompanying signs, Intuitive interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GuK Plus | $8.99 | one-time |
| GuK 1 | $24.99 | one-time |
| GuK 2 | $24.99 | one-time |
| GuK Gesamtpaket | $49.99 | one-time |


## Frequently asked questions

### Is BayGUS free?

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

### Is GuK free?

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

### Do BayGUS or GuK have ads?

Neither BayGUS nor GuK shows ads.

### Which is updated more often, BayGUS or GuK?

BayGUS ships an update every 3 days, and GuK every 5 days. Most recently, BayGUS was updated on October 19, 2026 and GuK on October 9, 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.*