# EiS vs GuK

The clearest difference is review sentiment: GuK at 100% against EiS's 20%. GuK also leads on update cadence (every 5 days vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. EiS sells 2 in-app purchases, starting at $4.49 per month and GuK sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

EiS ships an update every 4 months, GuK every 5 days. The most recent releases landed on September 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | EiS | GuK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 81 MB | 186 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wörterfabrik für unterstützte Kommunikation](https://appshunter.io/developer/1481083655) | [Deutsches Down-Syndrom InfoCenter](https://appshunter.io/developer/1792864018) |

## What reviewers say

### EiS

[App page](https://appshunter.io/ios/app/eis-app/id1481083656)

This app teaches sign language for Augmentative and Alternative Communication (AAC) to children. It uses symbols, words, audio, and videos of children demonstrating signs, promoting inclusive learning and participation.

**Highlights:** Learn sign language for AAC, Includes METACOM symbols, words, audio, and videos, Demonstrations by children with and without disabilities, Inclusive and accessible design, Focus on core vocabulary, Continuous development based on user feedback

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EiS-App monthly subscription | $4.49 | per month |
| EiS-App yearly subscription | $44.99 | per year |


### 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 EiS free?

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

### Is GuK free?

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

### Do EiS or GuK have ads?

Neither EiS nor GuK shows ads.

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

EiS ships an update every 4 months, and GuK every 5 days. Most recently, EiS was updated on September 11, 2026 and GuK on September 22, 2026.

---

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