# Audio Function Generator vs BPM detector

The clearest difference is update cadence: Audio Function Generator at every 6 weeks against BPM detector's every 10 months. BPM detector'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 BPM detector sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Audio Function Generator ships an update every 6 weeks, BPM detector every 10 months. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Audio Function Generator | BPM detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** | — |
| Number of ratings | **2.2K** | — |
| Positive reviews | 77.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 10 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 1 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Felix-Florian Flesch](https://appshunter.io/developer/1555591158) |

## 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


### BPM detector

[App page](https://appshunter.io/ios/app/bpm-detector/id1586439275)

Easily measure the tempo of any song by tapping along with its beat. This utility works on your phone or smartwatch, helping you quickly find the beats per minute.

**Highlights:** Tap to detect BPM, Works on phone and watch, Simple interface, Real-time tempo measurement

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Customization | $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 BPM detector free?

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

### Do Audio Function Generator or BPM detector have ads?

Neither Audio Function Generator nor BPM detector shows ads.

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

Audio Function Generator ships an update every 6 weeks, and BPM detector every 10 months. Most recently, Audio Function Generator was updated on September 24, 2026 and BPM detector on September 20, 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.*