# Audio Function Generator vs ToneGen Audio Tone Generator

The clearest difference is rating: Audio Function Generator at 4.7 against ToneGen Audio Tone Generator's 3.8. Audio Function Generator also leads on review sentiment (77% vs 37%) and ratings volume (2.2K vs 38). ToneGen Audio Tone Generator's advantage is iOS requirement (9.0 vs 15.5). On price, update cadence, 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 ToneGen Audio Tone Generator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Audio Function Generator holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 77% of Audio Function Generator's written reviews are positive against 37% of ToneGen Audio Tone Generator's.

Audio Function Generator ships an update every 6 weeks, ToneGen Audio Tone Generator every 2 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Audio Function Generator | ToneGen Audio Tone Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** | [3.8 (38 ratings)](https://appshunter.io/ios/app/tonegen-audio-tone-generator/id903272957/reviews) |
| Number of ratings | **2.2K** | 38 |
| Positive reviews | **77.1% of reviews** | 36.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 11 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) | [NCH Software](https://appshunter.io/developer/349888537) |

## 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


### ToneGen Audio Tone Generator

[App page](https://appshunter.io/ios/app/tonegen-audio-tone-generator/id903272957)

This utility generates various audio waveforms including sine, square, and noise. It supports a wide frequency range and can produce multiple tones simultaneously, with options to play or save them as WAV files.

**Highlights:** Sine, square, triangular, sawtooth, and impulse waveforms, White and pink noise generation, Frequency range 1Hz to 22kHz, Up to 16 simultaneous tones, Mono or stereo operation, Log or linear sweep generation, Save tones as WAV files

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ToneGen All Current Features | $4.99 | one-time |


## Frequently asked questions

### Is Audio Function Generator free?

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

### Is ToneGen Audio Tone Generator free?

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

### Which has better reviews, Audio Function Generator or ToneGen Audio Tone Generator?

Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while ToneGen Audio Tone Generator averages 3.8 from 38 ratings.

### Do Audio Function Generator or ToneGen Audio Tone Generator have ads?

Neither Audio Function Generator nor ToneGen Audio Tone Generator shows ads.

### Which is updated more often, Audio Function Generator or ToneGen Audio Tone Generator?

Audio Function Generator ships an update every 6 weeks, and ToneGen Audio Tone Generator every 2 months. Most recently, Audio Function Generator was updated on October 13, 2026 and ToneGen Audio Tone Generator on October 3, 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.*