# W Generator — WaveGenerator with level meter

> Audio wave generator with frequency, note, and chord modes. (iPhone/iPad app by Keiichiro Nakagawara.)

- Source: https://appshunter.io/ios/app/w-generator/id1577061937 (this page in markdown: same URL + `.md`)
- Developer: [Keiichiro Nakagawara](https://appshunter.io/developer/1577061939)
- Category: Utilities, Education
- Price: $0.99
- Age rating: 4+
- Requires: iOS 14.5 · 12 MB
- Languages: English
- Released: 2021-08-04
- Data updated: 2026-07-19
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/w-generator/id1577061937/reviews.md

## What is W Generator?

W Generator is an easy-to-use app that can play various types of waves including sine wave from 20Hz to 20kHz. Moreover it provides waves with note names and is able to play many chords with different kinds of waves. Lower frequency wave from 20Hz to100Hz would be too quiet to be heard due to frequency characteristics of iPhone’s or iPad’s default speakers and the human ear’s sensitivity, which would cause higher frequency wave from 18kHz to 20kHz to be so. However, with headphones or add-on speakers which have good frequency characteristics, lower and higher frequency waves might be heard more clearly.  Higher frequency wave might not be heard because of aged high frequency loss. 

Warning: Extremely High volume could be damage your ears using headphones or add-on speakers. 

Features:

Wave forms: Sine, Triangle, Sawtooth, Reverse-Sawtooth, Square and Half-wave Rectified
Modes: Frequency, Note and Chord
Frequencies: 20.00Hz to 20.00kHz
Notes: Cb0 to B#9
Chord types: 6, 7, 69, M7, add9, M9, aug, dim, aug7 and sus4
Gain: 0.0dB to -99.0dB

How to change frequencies, notes, chords, gain, waves and modes:

1. Frequencies
Tap frequency numbers to increase frequency.
Swiping up and down frequency numbers will increase and decrease frequency respectively.

2. Notes
Tap note names to change notes forwards.
Swiping up and down note names will change notes forwards or backwards respectively.

3. Chords
Tap note names to change root notes. Swiping up and down note names can change root notes forwards and backwards respectively.
Tap chord types to change chord types forwards. Swiping up and down chord types can change chord types forwards and backwards respectively.

4. Gain
Tap gain numbers to increase gain.
Swiping up and down gain numbers will increase and decrease gain respectively.


5. Waves
Tap wave buttons with wave forms to change waves. No buttons to select cannot output.

6. Modes
Tap mode buttons to change modes. No modes to select cannot output.

## Key features

- Multiple wave forms (Sine, Triangle, Sawtooth, etc.)
- Frequency, Note, and Chord modes
- Adjustable frequency range (20Hz to 20kHz)
- Support for various chord types
- Adjustable gain control
- Intuitive swipe and tap controls

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/w-generator/id1577061937/reviews.md

### 3/5 — Great app.. but..

*2022-11-01*

This is a great simple app that really helps with ear and pitch training.,
The only issue I have with it is the clunky interface. 
It would be good to be able to select notes and chords etc with a drop down box as the swipe motions seem to be a bit hit and miss ., either due to me not remembering what swipe does what where (there’s no help menu.. u have to read the App Store page for the info) or or it not registering my swipes correctly.
It would also be very helpful if you could set up some automated scales sequences to run through to practice along with pitch .. 
if it could do that I’d use the app for singing practice too.
But as is., the app does what it says it does and is pretty good.

## Frequently asked questions about W Generator

### What wave forms can W Generator produce?

W Generator can produce Sine, Triangle, Sawtooth, Reverse-Sawtooth, Square, and Half-wave Rectified wave forms. You can select these directly from the app's interface.

### What is the frequency range supported by W Generator?

The app supports a frequency range from 20.00Hz to 20.00kHz. This allows for a wide spectrum of audio generation, from low bass to high treble.

### Can W Generator play chords?

Yes, W Generator supports playing chords with various types including 6, 7, 69, M7, add9, M9, aug, dim, aug7, and sus4. You can select the root note and chord type.

### How do I control the gain in W Generator?

You can control the gain from 0.0dB down to -99.0dB. Tapping the gain numbers increases the gain, while swiping up or down adjusts it.

### What devices is W Generator compatible with?

W Generator is compatible with iPhone, iPad, and iPod. It is designed to run on Apple's mobile operating systems.

### How often is W Generator updated?

The app was last updated on February 26, 2024, with version 1.1.0. This indicates active development and potential for future improvements and bug fixes.

### Does W Generator have ads?

No, W Generator does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

### What is the age rating for W Generator?

W Generator has an age rating of 4+. This suggests it is suitable for young children and does not contain mature content.

## Version history (last 2 releases)

### 1.1.0 — 2024-02-26

The interruptions caused by Siri have made W Generator crash. This bug is fixed.

### 1.0.0 — 2021-08-04

No release notes.

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## More apps by Keiichiro Nakagawara

- [Circle Diagram](https://appshunter.io/ios/app/circle-diagram/id6462698792)

All apps by Keiichiro Nakagawara: https://appshunter.io/developer/1577061939

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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 2026-07-19.*