# MultiTone Generator — Frequency and Signal Generator

> Flexible audio frequency and signal generator with multiple waveform and sweep options. (iPhone/iPad app by Thomas Gruber.)

- Source: https://appshunter.io/ios/app/multitone-generator/id1161245288 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Gruber](https://appshunter.io/developer/342699861)
- Category: Music, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 355 App Store ratings · 35 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 9 MB
- Languages: German (Germany), Japanese, French (France), Chinese (Simplified, China), American English, Brazilian Portuguese, European Spanish, Korean
- Released: 2016-10-13
- Data updated: 2026-08-16
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/multitone-generator/id1161245288/reviews.md

## What is MultiTone Generator?

This is the all-new MultiTone Generator! An amazingly flexible and powerful frequency generator! 

Works with Audiobus and Audiobus Remote!

Upgrade to PRO and CREATE up to 16 tone combinations. Play them individually or combined.

PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth.

PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency). 

Use the SWEEP REPEAT / WOBBLE function.

Play back white and pink NOISE.

Fully CUSTOMIZABLE Frequency Min-Max ranges and Sweep time range.

The MultiTone Generator is AMAZINGLY INTUITIVE and SIMPLE!

ADVANCED SETTINGS/FEATURES (upgrade to PRO required):
=> Extending the frequency range (1Hz - 21kHz)
=> Extending the sweep times (1s - 600s)
=> Create up to 16 tone combinations
=> Changing maximum Sweep time slider range
=> Frequency slider setting to linear or logarithmic
=> Full support for the sequence playback menu
=> Full support for the remote play menu
=> Save/Load all configurations

By using this app, you agree to Apple’s Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- 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)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| MultiTone PRO+ for one year | $14.99 | per year |
| MultiTone PRO+ for one month | $2.99 | per month |
| MultiTone PRO for one year | $7.99 | per year |
| MultiTone PRO for one month | $1.49 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| MultiTone PRO Lifetime Access | $9.99 | one-time |
| MultiTone PRO+ Lifetime Access | $19.99 | one-time |
| MultiTone PRO+ Lifetime Access | $9.99 | one-time |


## What do users think of MultiTone Generator?

Overall sentiment: positive

**Pros**

- ✨ Sleek UI update
- 🔊 Tinnitus simulation accuracy
- 💡 Useful for frequency healing
- 🎶 Aids musical tuning understanding
- 💯 Great value for price
- 👍 User-friendly interface
- 🎵 Effective for tinnitus management
- 🚀 Powerful audio generation
- ✅ Reliable performance
- 🛠️ Flexible tone manipulation
- 💡 Notes section implementation
- 🔊 Dual tone generation
- 🌟 Customer service responsiveness
- 🔊 Pure frequency generation
- 💡 Psychoacoustics experimentation
- 💯 Versatile and excellent app
- 🔊 Works with Audiobus
- 👍 Dog silencer effectiveness

**Cons**

- 📱 iPhone frequency title readability
- 💰 Features moved to paid tier
- 💸 Deceptive update practices
- 🔊 Left/right speaker switch malfunction
- 🔋 Battery drain when in background
- 🔊 Amplitude adjustment difficulty
- 🔋 High battery consumption on iOS 11

**Commonly 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

**Most 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
- More frequency rows to add
- Create and name groupings of frequencies
- Summation of multiple waves in a single waveform
- Logarithmic frequency selection
- Auto-stop tones after X seconds
- Tones auto-stop on app minimize

## Recent user reviews (10 of 35)

All indexed reviews: https://appshunter.io/ios/app/multitone-generator/id1161245288/reviews.md

### 5/5 — UI UPDATE

*2026-01-22*

I’m loving the new UI update & sleek feel of everything. The app feels more alive like this. I’ve been an avid user for a while now & love the app, but a good UI update is so refreshing to have & makes me excited to continue using the app.

### 5/5 — Tinnitus simulator

*2024-12-24*

That’s right; subject to tinnitus for twenty-three years. Using your tone generator to simulate my high-pitched tonal tinnitus for those who have no idea what tinnitus figuratively sounds like. It’s close enough to convey the sensation. Kind of the equivalent of fingernails on a chalkboard.

### 4/5 — Good but could be great!

*2024-11-06*

I use this app quite a lot for frequency healing work, etc. I find Di very useful and feature rich BUT - I struggle to read the names/ titles of frequencies when using on my iPhone. It would be a great advantage to be able to give frequencies custom names that may be entered in BOLD! Also along the same lines it would be really helpful to be able to change the order of the frequency list!
All that said it’s a very worthwhile app.

### 2/5 — Great tool but unpredictable and unreliable.

*2024-10-26*

I used to love this app until time went by, and more and more features were removed and became only available to paid users as updates were made. Of course they never mention that in the new versions/releases before you download them. Pretty deceiving and unfair to the original users.

### 1/5 — Left and right speaker switches do not work!

*2024-09-21*

The left and right channel switches do not work. When I set a frequency to play on the left speaker it plays through both. When I set a frequency to play on the right it still plays left and right. I paid for the pro version of this app and I would expect that to work. Just needs a fix and I can give the app the positive review it would deserve.

**Developer response:** Hello! Could you please check in the systems settings of your iPhone/iPad that Mono Audio has not been switched on by accident? If Mono Audio is enabled, left and right channel switching does not work. With the default stereo audio, left and right channel switching does work well on my end. You can also write an Email to me directly to tom@ee-toolkit.com. Best, -tom

### 5/5 — Perfect audio tone generator app

*2024-07-07*

I am trying to understand different musical tuning systems - equal temperament, perfect, etc. Struggling a bit to get a feel for this just from reading about it, but hearing it from this app immediately cemented my understanding. £3.75 for a brilliant tool that the author has spent hundreds of hours developing? A total no-brainer!
I’m sure I will use this throughout my learning: rock-solid 5 stars👍

### 5/5 — Great app

*2024-06-19*

Great functionality. User friendly.  App is a good tool for healing and sound manipulation 
I would recommend this app

### 5/5 — I like it

*2024-05-09*

Works great for my purposes. Highly recommended.

### 5/5 — A unique approach helping my Tinitus

*2024-02-13*

Great solid reliable app. I find the tones that match my tinitus which for me is a combination of a high frequency single tone and white noise, and play music at the same time .. brilliant

### 5/5 — Incredible

*2024-02-04, version 3.1.0*

Einstein is the and is the Future, 

Why is Bill called with the Ga? Window Huh ? L.U.L

## Frequently asked questions about MultiTone Generator

### What does the MultiTone Generator app do?

This app functions as a versatile audio frequency and signal generator. It allows users to create various test tones, including sine, rectangular, triangular, and sawtooth waves, as well as white and pink noise. It also supports frequency sweeps and customizable ranges.

### What are the key features of the MultiTone Generator?

Key features include the ability to play different waveform test tones, perform frequency sweeps in both directions, utilize a sweep repeat/wobble function, and generate white and pink noise. Users can also customize frequency and sweep time ranges. The PRO version unlocks advanced features like creating multiple tone combinations.

### Is the MultiTone Generator app free to use?

The app is free to download and use with its core functionalities. However, certain advanced features, such as extending the frequency range, increasing sweep times, and creating up to 16 tone combinations, require an upgrade to the PRO version through in-app purchases.

### What is the frequency range and sweep time supported?

The free version offers a standard frequency range and sweep time. Upgrading to PRO extends the frequency range from 1Hz to 21kHz and allows for sweep times from 1 second to 600 seconds, providing greater flexibility for testing.

### Who would benefit from using the MultiTone Generator?

This app is ideal for musicians, audio engineers, sound designers, and anyone involved in audio production or testing. It's useful for calibrating equipment, testing speaker responses, creating sound effects, or experimenting with audio frequencies.

## Version history (last 5 releases)

### 4.4.1 — 2026-04-10

Support for text entry of saved sequences

### 4.4.0 — 2026-04-01

Fixed an issue with the BPM playback start/stop behaviour

### 4.3.0 — 2026-02-20

• New Feature: Export saved configurations and sequences! Export configurations of the main page and sequences (Play Sequence page) as files for import on other devices or sharing with other MultiTone App users
• Add BPM support for Sequence Play!
• Smaller fixes and improvements

### 4.2.1 — 2026-02-04

Fixed an issue with playback start/stop synchronisation

### 4.2.0 — 2026-01-20

• This update introduces major enhancements to all the popovers across the app, with a refreshed design throughout the App that better aligns with the visual improvements introduced in iOS 26.
• All popovers received a major design overhaul, better readability, larger content and improved usability
• In addition to the updated UI, we’ve also included several smaller fixes and performance improvements to ensure the best App experience.
• Sweep improvements while repeat is active (frequency dependent volume ramping)

## Apps similar to MultiTone Generator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sonic \| Water Eject](https://appshunter.io/ios/app/sonic-water-eject/id986999895) | 4.7 (20,401) | Free | Music |
| [Audio Function Generator PRO](https://appshunter.io/ios/app/audio-function-generator-pro/id895074703) | 4.8 (266) | $12.99 | Music |
| [MultiTone Generator PRO](https://appshunter.io/ios/app/multitone-generator-pro/id1143928697) | 4.9 (99) | $9.99 | Music |
| [Tone Generator: Audio Sound Hz](https://appshunter.io/ios/app/tone-generator-audio-sound-hz/id1206449238) | 4.7 (2,583) | Free | Music |
| [Frequency Generator: Tone & Hz](https://appshunter.io/ios/app/frequency-generator-tone-and-hz/id1607976184) | 4.3 (82) | Free | Music |
| [Frequency Generator: HZ](https://appshunter.io/ios/app/frequency-generator-hz/id6469028689) | 4.4 (471) | Free | Music |

## More apps by Thomas Gruber

- [EE ToolKit PRO](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426)
- [EE ToolKit](https://appshunter.io/ios/app/ee-toolkit/id391792609)
- [EE ToolKit PRO for iPad](https://appshunter.io/ios/app/ee-toolkit-pro-for-ipad/id393145367)
- [Audio Function Generator](https://appshunter.io/ios/app/audio-function-generator/id768229610)
- [Audio Function Generator PRO](https://appshunter.io/ios/app/audio-function-generator-pro/id895074703)
- [Resistor ToolKit, Color Codes](https://appshunter.io/ios/app/resistor-toolkit-color-codes/id1058581945)

All apps by Thomas Gruber: https://appshunter.io/developer/342699861

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*