# Frequency Generator vs SternDeutsch

The clearest difference is in-app purchases: Frequency Generator at none against SternDeutsch's 4. SternDeutsch's advantage is update cadence (every 2 months vs every 14 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SternDeutsch sells 4 in-app purchases, starting at $0.99 per month. Frequency Generator asks for nothing beyond the download.

Frequency Generator ships an update every 14 months, SternDeutsch every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Frequency Generator | SternDeutsch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/frequency-generator-tone-a4/id6529535310/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 7 MB | 43 MB |
| Requires iOS | **15** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) | [洪伟 李](https://appshunter.io/developer/1792020152) |

## What reviewers say

### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-tone-a4/id6529535310)

This utility app provides a simple and straightforward tuning fork. It allows users to generate any frequency between 20 Hz and 20,000 Hz, limited only by the device's speaker and human hearing.

**Highlights:** Adjustable frequency range (20 Hz - 20,000 Hz), Simple and easy to use interface, Generates audio tones, No complex settings

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

**In-app purchases:** none


### SternDeutsch

[App page](https://appshunter.io/ios/app/sterndeutsch/id6761676361)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $0.99 | per month |
| 3 Months | $2.99 | per 3 months |
| 6 Months | $4.99 | per 6 months |
| 12 Months | $8.99 | per year |


## Frequently asked questions

### Is Frequency Generator free?

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

### Is SternDeutsch free?

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

### Do Frequency Generator or SternDeutsch have ads?

Neither Frequency Generator nor SternDeutsch shows ads.

### Which is updated more often, Frequency Generator or SternDeutsch?

Frequency Generator ships an update every 14 months, and SternDeutsch every 2 months. Most recently, Frequency Generator was updated on October 24, 2026 and SternDeutsch on October 28, 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.*