# Sawti vs Der Kestner

The clearest difference is in-app purchases: Sawti at none against Der Kestner's 9. Der Kestner's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Der Kestner sells 8 in-app purchases, starting at $3.99 per month. Sawti asks for nothing beyond the download.

Sawti ships an update every 4 months, Der Kestner every 3 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sawti | Der Kestner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/sawti-learn-to-sing/id1607483707/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | — | 73.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 206 MB | 86 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [phonicscore GmbH](https://appshunter.io/developer/781493368) | [Verlag Karin Kestner GmbH](https://appshunter.io/developer/1673366576) |

## What reviewers say

### Sawti

[App page](https://appshunter.io/ios/app/sawti-learn-to-sing/id1607483707)

This app uses the Wirth method to teach singing through interactive exercises. It offers real-time pitch feedback and adapts to your voice range, guiding beginners to become confident singers. Earn a certificate upon completion of all levels.

**Highlights:** Real-time pitch monitoring, Adaptive exercises, Interactive 'hit-the-bar' concept, Rehearsal room for technique practice, Completion certificate, Nine learning levels

**Features:** Family Sharing

**In-app purchases:** none


### 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 Sawti free?

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

### Is Der Kestner free?

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

### Do Sawti or Der Kestner have ads?

Neither Sawti nor Der Kestner shows ads.

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

Sawti ships an update every 4 months, and Der Kestner every 3 weeks. Most recently, Sawti was updated on October 25, 2026 and Der Kestner on October 30, 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.*