# Audio Function Generator vs High Frequency Tones

Audio Function Generator and High Frequency Tones both sit at 4.7 stars, but that hides the real split: 77% of Audio Function Generator's written reviews are positive against 64% of High Frequency Tones's. Audio Function Generator also leads on ratings volume (2.2K vs 595). High Frequency Tones's advantage is iOS requirement (9.0 vs 15.5). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Audio Function Generator sells 1 one-off in-app purchase and High Frequency Tones sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Audio Function Generator against 4.7 for High Frequency Tones. Both are backed by a comparable volume of ratings — 2.2K and 595 respectively. Written reviews are what separate them: 77% of Audio Function Generator's written reviews are positive against 64% of High Frequency Tones's.

## The numbers

| Metric | Audio Function Generator | High Frequency Tones |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** | [4.7 (595 ratings)](https://appshunter.io/ios/app/high-frequency-tones/id1511601653/reviews) |
| Number of ratings | **2.2K** | 595 |
| Positive reviews | **77.1% of reviews** | 63.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 25 MB |
| Requires iOS | 15.5 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Kevin Vergho](https://appshunter.io/developer/414151786) |

## What reviewers say

### Audio Function Generator

[App page](https://appshunter.io/ios/app/audio-function-generator/id768229610)

Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.

**Highlights:** Generate sine, square, triangle, and sawtooth tones, Frequency and volume sweep generation, Noise generation (white, pink, violet, etc.), Custom preset creation and saving, Extended frequency range (PRO feature), Multi-tone playback (PRO feature)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to PRO | $9.99 | one-time |

**What reviewers like**

- 👍 Great app
- 🎶 Helps with Tinnitus
- 💯 Best app I've paid for
- 🔍 Highly recommended
- 🎨 Attention to detail

**What reviewers complain about**

- 🐛 Crashes
- 💰 Deceptive/Money hungry
- 🔒 Basic features paywalled
- 🔒 Limited without paying
- 🔒 Removed functionality to push paid version

**Reported bugs**

- Crashes on launch
- Volume slider issues
- Airplay not working
- Sound distortion when display is active

**Requested features**

- Add download/save feature for custom sounds
- Improve sweep function (continuous mode, better frequency control)
- Add more multi-frequency rows
- Implement 432Hz base frequency option
- Add phase control for noise generators


### High Frequency Tones

[App page](https://appshunter.io/ios/app/high-frequency-tones/id1511601653)

Generate sound waves across a wide frequency range to test hearing limits. Explore potential uses like deterring pests or competing with friends to see who can hear higher pitches. An optional premium upgrade removes ads and unlocks additional waveform options.

**Highlights:** Generate sound waves up to 20,000 Hz, Test human hearing limits, Dog whistle functionality, Bug deterrent, Teenager deterrent, Hearing competition tool

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Premium | $0.99 | one-time |


## Frequently asked questions

### Is Audio Function Generator free?

Audio Function Generator is free to download, with in-app purchases available.

### Is High Frequency Tones free?

High Frequency Tones is free to download, with in-app purchases available.

### Which has better reviews, Audio Function Generator or High Frequency Tones?

Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while High Frequency Tones averages 4.7 from 595 ratings.

### Do Audio Function Generator or High Frequency Tones have ads?

Neither Audio Function Generator nor High Frequency Tones shows ads.

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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.*