# Audio Frequency Analyzer vs Audio Function Generator

The clearest difference is price: Audio Function Generator at Free against Audio Frequency Analyzer's $9.99. Audio Function Generator also leads on rating (4.7 vs 3.7) and update cadence (every 6 weeks vs every 8 months). Audio Frequency Analyzer's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Audio Function Generator is free to download; Audio Frequency Analyzer costs $9.99 up front. Audio Function Generator sells 1 one-off in-app purchase. Audio Frequency Analyzer asks for nothing beyond the download.

Audio Function Generator holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of Audio Frequency Analyzer's written reviews are positive against 77% of Audio Function Generator's.

Audio Frequency Analyzer ships an update every 8 months, Audio Function Generator every 6 weeks. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Audio Frequency Analyzer | Audio Function Generator |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews) | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** |
| Number of ratings | 3 | **2.2K** |
| Positive reviews | 60.0% of reviews | **77.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 0 MB | 13 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Thomas Gruber](https://appshunter.io/developer/342699861) |

## What reviewers say

### Audio Frequency Analyzer

[App page](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

**Highlights:** Real-time frequency spectrum response measurement (1/3 octave, 30 bands), FFT Analyzer, Observation frequency range: 20 - 23000 Hz, Calibration function for high accuracy, Supports built-in and external microphones, Snapshot and averaging functions

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Audio Frequency Analyzer free?

Audio Frequency Analyzer costs $9.99, with no in-app purchases.

### Is Audio Function Generator free?

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

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

Audio Function Generator is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while Audio Function Generator averages 4.7 from 2.2K ratings.

### Do Audio Frequency Analyzer or Audio Function Generator have ads?

Neither Audio Frequency Analyzer nor Audio Function Generator shows ads.

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

Audio Frequency Analyzer ships an update every 8 months, and Audio Function Generator every 6 weeks. Most recently, Audio Frequency Analyzer was updated on October 12, 2026 and Audio Function Generator on October 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.*