# Audio Function Generator vs sine wave generator

The clearest difference is review sentiment: Audio Function Generator at 77% against sine wave generator's 14%. Audio Function Generator also leads on rating (4.7 vs 4.1) and ads (none vs shown). sine wave generator's advantage is in-app purchases (none vs 1) and update cadence (every 10 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Audio Function Generator sells 1 one-off in-app purchase. sine wave generator asks for nothing beyond the download.

Audio Function Generator holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 34, 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 14% of sine wave generator's.

Audio Function Generator ships an update every 6 weeks, sine wave generator every 10 days. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Audio Function Generator | sine wave generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** | [4.1 (34 ratings)](https://appshunter.io/ios/app/sine-wave-generator/id1118935547/reviews) |
| Number of ratings | **2.2K** | 34 |
| Positive reviews | **77.1% of reviews** | 14.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 14 MB | 24 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) | [Yuji Yanase](https://appshunter.io/developer/630324479) |

## 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


### sine wave generator

[App page](https://appshunter.io/ios/app/sine-wave-generator/id1118935547)

Generate sine waves using touch input, DTMF tones, or custom frequency and volume settings. This utility app offers multiple modes for creating audio signals.

**Highlights:** Touch-based sine wave generation, DTMF tone signal creation, Custom frequency and volume input, Multi-touch support, Tone signal generation for phones

**In-app purchases:** none


## Frequently asked questions

### Is Audio Function Generator free?

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

### Is sine wave generator free?

sine wave generator is free to download, with no in-app purchases.

### Which has better reviews, Audio Function Generator or sine wave generator?

Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while sine wave generator averages 4.1 from 34 ratings.

### Do Audio Function Generator or sine wave generator have ads?

sine wave generator shows ads; Audio Function Generator does not.

### Which is updated more often, Audio Function Generator or sine wave generator?

Audio Function Generator ships an update every 6 weeks, and sine wave generator every 10 days. Most recently, Audio Function Generator was updated on September 24, 2026 and sine wave generator on September 17, 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.*