# Audio Function Generator vs AcousticLab

The clearest difference is rating: Audio Function Generator at 4.7 against AcousticLab's 4.0. Audio Function Generator also leads on ratings volume (2.2K vs 1) and update cadence (every 6 weeks vs every 7 months). AcousticLab's advantage is review sentiment (100% vs 77%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Audio Function Generator sells 1 one-off in-app purchase and AcousticLab sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Audio Function Generator holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 77% of Audio Function Generator's written reviews are positive against 100% of AcousticLab's, so the app with the better star average is not the one people write more warmly about.

Audio Function Generator ships an update every 6 weeks, AcousticLab every 7 months. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Audio Function Generator | AcousticLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/acousticlab/id1382478687/reviews) |
| Number of ratings | **2.2K** | 1 |
| Positive reviews | 77.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 7 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [ZKXY Technology Co., Ltd](https://appshunter.io/developer/1382478384) |

## 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


### AcousticLab

[App page](https://appshunter.io/ios/app/acousticlab/id1382478687)

Transform your iOS device into a professional noise measurement tool. Capture precise sound with stereo recording, calibration, and advanced analysis features. Ideal for accurate audio data collection and evaluation.

**Highlights:** Professional stereo recording, Precise sound acquisition and analysis, Input channel calibration, Automatic recording triggers, Prerecord function, Signal marking and playback

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Analysis Set, 1 Month | $9.99 | per month |


## Frequently asked questions

### Is Audio Function Generator free?

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

### Is AcousticLab free?

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

### Which has better reviews, Audio Function Generator or AcousticLab?

Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while AcousticLab averages 4.0 from 1 ratings.

### Do Audio Function Generator or AcousticLab have ads?

Neither Audio Function Generator nor AcousticLab shows ads.

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

Audio Function Generator ships an update every 6 weeks, and AcousticLab every 7 months. Most recently, Audio Function Generator was updated on September 26, 2026 and AcousticLab 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.*