# EiS vs BayGUS

The clearest difference is review sentiment: BayGUS at 100% against EiS's 20%. BayGUS also leads on update cadence (every 3 days vs every 4 months). EiS's advantage is iOS requirement (13.0 vs 15.0). 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 BayGUS sells 4 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

EiS ships an update every 4 months, BayGUS every 3 days. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | EiS | BayGUS |
| --- | --- | --- |
| 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 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 81 MB | 37 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wörterfabrik für unterstützte Kommunikation](https://appshunter.io/developer/1481083655) | [Christian Mayr](https://appshunter.io/developer/1477487057) |

## 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 |


### 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 |


## Frequently asked questions

### Is EiS free?

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

### Is BayGUS free?

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

### Do EiS or BayGUS have ads?

Neither EiS nor BayGUS shows ads.

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

EiS ships an update every 4 months, and BayGUS every 3 days. Most recently, EiS was updated on September 30, 2026 and BayGUS on October 16, 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.*