# Audio Function Generator PRO vs MultiTone Generator

The clearest difference is price: MultiTone Generator at Free against Audio Function Generator PRO's $9.99. Audio Function Generator PRO's advantage is in-app purchases (none vs 7) and rating (4.8 vs 4.6). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

MultiTone Generator is free to download; Audio Function Generator PRO costs $9.99 up front. MultiTone Generator sells 7 in-app purchases, starting at $1.49 per month. Audio Function Generator PRO asks for nothing beyond the download.

Audio Function Generator PRO holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 269 and 355 respectively. Written reviews point the same way: 88% of Audio Function Generator PRO's written reviews are positive against 80% of MultiTone Generator's.

Audio Function Generator PRO ships an update every 6 weeks, MultiTone Generator monthly. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Audio Function Generator PRO | MultiTone Generator |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.8 (269 ratings)](https://appshunter.io/ios/app/audio-function-generator-pro/id895074703/reviews)** | [4.6 (355 ratings)](https://appshunter.io/ios/app/multitone-generator/id1161245288/reviews) |
| Number of ratings | 269 | **355** |
| Positive reviews | **87.9% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 9 MB |
| Requires iOS | 15.5 | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Thomas Gruber](https://appshunter.io/developer/342699861) |

## What reviewers say

### Audio Function Generator PRO

[App page](https://appshunter.io/ios/app/audio-function-generator-pro/id895074703)

Generate various audio test tones, including sine, square, and sawtooth waves. Explore frequency and volume sweeps, custom presets, and different types of noise. Advanced settings allow for fine-tuning signal parameters and creating complex multi-tone sequences.

**Highlights:** Generate sine, square, triangular, and sawtooth tones, Frequency and volume sweep generation, Customizable presets and configurations, Multiple noise types (White, Pink, Violet, etc.), Advanced signal parameter control, Multi-tone and dual function generation

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

**In-app purchases:** none

**What reviewers like**

- ✨ Superb craftsmanship and work
- 🚀 Excellent performance on older devices
- 💡 History feature is a great addition
- 👍 Versatile and powerful app
- 🎶 Great for binaural beats and sound creation

**What reviewers complain about**

- 📉 Linear sweep is useless
- ❓ Missing PWM functionality
- ❓ Missing Terzrauschen (third-octave noise)
- 🐛 Volume button issues
- 🐛 GUI is bad

**Reported bugs**

- Volume button issues (jumps up and down, displays wrong level)
- Update crashes on iPad Air2 when changing screens
- App opens AppStore repeatedly after purchase
- Buttons don't respond, settings don't keep
- Frequencies stick, program is useless

**Requested features**

- Logarithmic sweeps and frequency slider scale
- PWM functionality
- Terzrauschen (third-octave noise)
- Ping-pong sweeps in Multitone windows
- Sweeping of noise/adding noise in Multitone sweep with sweeping bandpass filter


### MultiTone Generator

[App page](https://appshunter.io/ios/app/multitone-generator/id1161245288)

Generate a wide range of audio test tones, including sine, rectangular, triangular, and sawtooth waves. Explore frequency sweeps, noise generation, and customizable settings. Upgrade for advanced features like creating multiple tone combinations and extended frequency ranges.

**Highlights:** Generate sine, rectangular, triangular, and sawtooth waves, Play frequency sweep test tones, Sweep repeat/wobble function, Play white and pink noise, Customizable frequency and sweep time ranges, Create up to 16 tone combinations (PRO)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MultiTone PRO for one month | $1.49 | per month |
| MultiTone PRO+ for one month | $2.99 | per month |
| MultiTone PRO for one year | $7.99 | per year |
| MultiTone PRO+ for one year | $14.99 | per year |
| MultiTone PRO Lifetime Access | $9.99 | one-time |
| MultiTone PRO+ Lifetime Access | $9.99 | one-time |
| MultiTone PRO+ Lifetime Access | $19.99 | one-time |

**What reviewers like**

- ✨ Sleek UI update
- 🔊 Tinnitus simulation accuracy
- 💡 Useful for frequency healing
- 🎶 Aids musical tuning understanding
- 💯 Great value for price

**What reviewers complain about**

- 📱 iPhone frequency title readability
- 💰 Features moved to paid tier
- 💸 Deceptive update practices
- 🔊 Left/right speaker switch malfunction
- 🔋 Battery drain when in background

**Reported bugs**

- Left and right speaker switches do not work
- App drains battery when in background
- Amplitude difficult to adjust on iPhones
- High battery consumption after iOS 11 upgrade

**Requested features**

- Custom frequency names (bold)
- Reorder frequency list
- Display saved preset names at top
- Sweeping duration less than 0.1s
- Create and save multiple tracks


## Frequently asked questions

### Is Audio Function Generator PRO free?

Audio Function Generator PRO costs $9.99, with no in-app purchases.

### Is MultiTone Generator free?

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

### Which has better reviews, Audio Function Generator PRO or MultiTone Generator?

Audio Function Generator PRO is rated higher. Audio Function Generator PRO averages 4.8 out of 5 from 269 ratings, while MultiTone Generator averages 4.6 from 355 ratings.

### Do Audio Function Generator PRO or MultiTone Generator have ads?

Neither Audio Function Generator PRO nor MultiTone Generator shows ads.

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

Audio Function Generator PRO ships an update every 6 weeks, and MultiTone Generator monthly. Most recently, Audio Function Generator PRO was updated on September 21, 2026 and MultiTone Generator on September 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*