# Audio Function Generator vs Frequency Sound Wave Generator

The clearest difference is ads: Audio Function Generator at none against Frequency Sound Wave Generator's shown. Audio Function Generator also leads on ratings volume (2.2K vs 82). Frequency Sound Wave Generator's advantage is review sentiment (90% vs 77%). On price, rating, update cadence 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 Frequency Sound Wave Generator sells 3 in-app purchases, starting at $1.99 per month. 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 Frequency Sound Wave Generator. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 82, so its average is the more settled of the two. Written reviews are what separate them: 77% of Audio Function Generator's written reviews are positive against 90% of Frequency Sound Wave Generator's.

Audio Function Generator ships an update every 6 weeks, Frequency Sound Wave Generator every 4 weeks. Both last shipped on September 24, 2026.

## The numbers

| Metric | Audio Function Generator | Frequency Sound Wave Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews) | [4.7 (82 ratings)](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398/reviews) |
| Number of ratings | **2.2K** | 82 |
| Positive reviews | 77.1% of reviews | **90.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 157 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [David Krejci](https://appshunter.io/developer/1737377675) |

## 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


### Frequency Sound Wave Generator

[App page](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398)

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

**Highlights:** Single and multiple frequency generation, Musical notes presets, Binaural beats, SFX sound generator, Sweep generator, Bass/Subwoofer sound test, DTMF tones

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO subscription | $1.99 | per month |
| Yearly Pro Membership | $9.99 | per year |
| Lifetime PRO membership | $19.99 | one-time |


## Frequently asked questions

### Is Audio Function Generator free?

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

### Is Frequency Sound Wave Generator free?

Frequency Sound Wave Generator is free to download, with in-app purchases available.

### Which has better reviews, Audio Function Generator or Frequency Sound Wave Generator?

Audio Function Generator and Frequency Sound Wave Generator are both rated 4.7 out of 5 on the App Store, from 2.2K and 82 ratings respectively.

### Do Audio Function Generator or Frequency Sound Wave Generator have ads?

Frequency Sound Wave Generator shows ads; Audio Function Generator does not.

### Which is updated more often, Audio Function Generator or Frequency Sound Wave Generator?

Audio Function Generator ships an update every 6 weeks, and Frequency Sound Wave Generator every 4 weeks. Most recently, Audio Function Generator was updated on September 24, 2026 and Frequency Sound Wave Generator on September 24, 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.*