# Tone Generator Ultra

> Versatile audio test tone and frequency generator with multiple wave types and noise options. (iPhone/iPad app by 4Pockets.com.)

- Source: https://appshunter.io/ios/app/tone-generator-ultra/id514273546 (this page in markdown: same URL + `.md`)
- Developer: [4Pockets.com](https://appshunter.io/developer/370131860)
- Category: Music, Utilities
- Price: $1.99 with in-app purchases
- Rating: 3.40/5 from 8 App Store ratings · 40 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 3 MB
- Languages: American English
- Released: 2012-04-07
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tone-generator-ultra/id514273546/reviews.md

## What is Tone Generator Ultra?

Tone Generator Ultra is a simple and easy-to-use test tone and frequency generator. Tones can be set by frequency or musical note. 

Features:
-Sine, Square & Sawtooth Wave Generation
-Chromatic pitch detection from external sources
-Configurable A4 callibration
-White and pink noise
-Multi-tone generator
-Impulse wave
-Supports frequencies from 20Hz to 22kHz
-Logarithmic / linear sweep utility with 
adjustable upper and lower frequencies
and delay


Tone Generators are very useful for a variety of tasks including:
- Balancing your Stereo or Home Cinema System
- Testing Speakers
- Acoustics testing
- White and Pink Noise Generator 

Can be used inconjunction with PocketRTA Ultra Spectrum Analyzer for the iPhone.

Or for fun
- Compare your friends hearing, see who is straining to hear the sounds
- Annoy your best friend with that pesky sound.
- But definately not to be used to annoy your teachers.

## Key features

- Sine, Square & Sawtooth Wave Generation
- Chromatic pitch detection
- White and pink noise generation
- Multi-tone generator
- Logarithmic / linear sweep utility
- Frequency range 20Hz to 22kHz

## Pricing and in-app purchases

Base price: $1.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock Tone Generator Ultra | $1.99 | one-time |


## Recent user reviews (10 of 40)

All indexed reviews: https://appshunter.io/ios/app/tone-generator-ultra/id514273546/reviews.md

### 5/5 — シンプルで使いやすい

*2021-05-12*

楽器のチューナーとして使ってます。
ちょこっと使いたいときや、突然〜〜Hzが必要になった時にすぐ使えるので重宝してます。
オクターブで変更できるのも何気に嬉しいです。

### 5/5 — Everything you could ask for and more.

*2016-02-06, version 1.05*

This has everything I would need and more for a tone generator. It also has some interesting features I was not expecting but am thinking will be very useful. Very glad I opted for this one. Don't believe apple in app purchases label, the developers have made it all available for the initial purchase price which is amazingly little considering haw much functionality you get. Used to use "Tone Generator Pro" before they wrecked it with a complete overhaul. This APP is way better .

### 2/5 — Didn't like the UI

*2015-08-24*

The app worked but I didn't find like the user interface. Changing frequencies was a pain. The slider was linear instead of logarithmic, making it impractical since the most useful frequencies are crammed together in a small part of the slider. I'm resuming my search for a useful tone generator.

**Developer response:** You supposed to use the touch sensirive surface to select the frequency sliding each digit up or down. It really doesn't get any easier.

### 1/5 — Worthless

*2015-05-29*

Could not get it to generate ANY sound.  Waste of time, and money.  Would give negative stars if I could.

**Developer response:** Were you using a bluetooth speaker or headset by any chance? It should work perfectly fine using the inbuilt or wired speaker.

### 5/5 — Très complet

*2015-03-12*

Application pour générer toutes sortes de signal de test, très complète, fonctionne parfaitement.

### 2/5 — Doesn't keep playing in background

*2014-10-11*

This app is worthless because it stops playing sound when you switch away from it, even with the "Keep Alive" setting enabled in the app.  How am I supposed to switch to my RTA app to analyze the results of piping the tones through my PA if this app stops making sound when I switch away from it?!?

### 3/5 — çà bloc un peut des fois

*2014-07-07*

oui pas mal mais sa bloc

### 5/5 — Awesome app

*2014-06-29*

Very useful for Car audio, Guitar tuning... Has many useful tests

### 2/5 — Ok, but no Bluetooth support

*2014-06-07*

It works as advertised, but I wanted to use it to test the frequency output of my Bluetooth speakers so I could use that as a guide for my equalizer settings. But the output only goes to the tiny iPhone speaker, not out to the Bluetooth device.

### 5/5 — Sounds good!!

*2014-05-28*

개인적으로 음향분야에서 필요한 소스를 잘내어주는 어플. 업데이트도 잘 진행되었기에 평소에는 쓰지않는 리뷰를 작성하게 되었다. 필요한 분들은 좋을듯.

## Frequently asked questions about Tone Generator Ultra

### What does Tone Generator Ultra do?

Tone Generator Ultra is an application designed to generate various audio test tones and frequencies. It can produce sine, square, and sawtooth waves, as well as white and pink noise. The app is useful for tasks like balancing audio systems, testing speakers, and acoustics analysis.

### What are the key features of Tone Generator Ultra?

Key features include the generation of sine, square, and sawtooth waves, chromatic pitch detection from external sources, configurable A4 calibration, white and pink noise generation, a multi-tone generator, and an impulse wave. It also supports a wide frequency range from 20Hz to 22kHz and includes a logarithmic/linear sweep utility.

### Is Tone Generator Ultra free to use?

The application is free to download and use, but it offers in-app purchases. This means that while the core functionality is available for free, certain advanced features or additional content may require a purchase.

### What can I use Tone Generator Ultra for?

This app is highly versatile. It's excellent for balancing stereo or home cinema systems, testing speakers, and performing acoustics testing. It can also function as a white and pink noise generator. Additionally, it can be used for fun, such as comparing hearing capabilities or creating specific sounds.

### What devices is Tone Generator Ultra compatible with?

While the description mentions compatibility with the iPhone in conjunction with PocketRTA Ultra Spectrum Analyzer, it is generally designed for mobile devices. Specific operating system requirements would typically be found on the app store listing for your device.

## Version history (last 5 releases)

### 1.08 — 2018-04-05

This update from Apple will improve the functionality of this app. No new features are included.

Minor Bug Fixes

### 1.07 — 2018-01-19

You can now use with an external Bluetooth Speaker. 
Background audio is supported.

NOTE: Connect to the speaker prior to running the app. While connected to Bluetooth the input is disabled.

### 1.06 — 2016-08-31

Fixed some crashing issues with iOS9
Greater calibration range for +/- 40Hz 
Added a new Multi-Tone section allowing you to layer up to 8 frequencies and save them as presets.

### 1.05 — 2014-05-25

Removed In-App Purchases. All features are now available without Adds.

Tone Generator is now a paid application.

### 1.04 — 2014-05-14

Native iOS7 support, additional social links and push notifications added.

## Apps similar to Tone Generator Ultra

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Frequency Generator: HZ](https://appshunter.io/ios/app/frequency-generator-hz/id6469028689) | 4.4 (471) | Free | Music |
| [Sonic \| Water Eject](https://appshunter.io/ios/app/sonic-water-eject/id986999895) | 4.7 (20,655) | Free | Music |
| [MultiTone Generator PRO](https://appshunter.io/ios/app/multitone-generator-pro/id1143928697) | 4.9 (99) | $9.99 | Music |
| [MultiTone Generator](https://appshunter.io/ios/app/multitone-generator/id1161245288) | 4.6 (355) | Free | Music |
| [Frequency Generator: Tone & Hz](https://appshunter.io/ios/app/frequency-generator-tone-and-hz/id1607976184) | 4.4 (82) | Free | Music |
| [Tone Generator: Audio Sound Hz](https://appshunter.io/ios/app/tone-generator-audio-sound-hz/id1206449238) | 4.7 (2,583) | Free | Music |

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All apps by 4Pockets.com: https://appshunter.io/developer/370131860

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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 2026-08-31.*