# Oscillator 3 - Triangle

> Triangle wave synthesizer for music education and creative sound design. (iPhone/iPad app by Cooperator Design.)

- Source: https://appshunter.io/ios/app/oscillator-3-triangle/id1570716332 (this page in markdown: same URL + `.md`)
- Developer: [Cooperator Design](https://appshunter.io/developer/1206655266)
- Category: Music, Education
- Price: Free
- Rating: 4.30/5 from 9 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 15 MB
- Languages: American English
- Released: 2021-10-21
- Data updated: 2026-08-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/oscillator-3-triangle/id1570716332/reviews.md

## What is Oscillator 3?

Oscillator 3 is a Triangle wave synthesizer, playable via MIDI or as an AUv3.
Useful as an educational tool to learn about synthesis parameters such as envelopes and modulation, or as a creative tool when you need a pure triangle wave.
Drone mode plays any notes back continuously at the level set by the 'Sustain' knob.
Layer with other apps in the Oscillator series to create rich evolving textures.

## Key features

- Triangle wave synthesis
- MIDI input support
- AUv3 integration
- Educational synthesis tool
- Drone mode for continuous playback
- Layering with other synths

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/oscillator-3-triangle/id1570716332/reviews.md

### 1/5 — unresponsive keys

*2022-04-01*

it's impossible to play anything because sometimes the key presses don't register

## Frequently asked questions about Oscillator 3

### What is Oscillator 3?

Oscillator 3 is a free triangle wave synthesizer application for iOS devices. It can be used as an educational tool to learn about synthesis parameters or as a creative instrument for generating pure triangle wave sounds.

### What devices does Oscillator 3 support?

Oscillator 3 is compatible with iPhone, iPad, and iPod touch devices. It is rated for users aged 4 and up.

### Can Oscillator 3 be used with other music apps?

Yes, Oscillator 3 supports AUv3 integration, allowing you to layer it with other apps in the Oscillator series or other compatible synthesizers to create richer and more complex sound textures.

### Does Oscillator 3 have ads?

No, Oscillator 3 does not contain advertisements. It is a completely free application with no in-app purchases or ads.

### How often is Oscillator 3 updated?

Oscillator 3 was last updated on October 21, 2021, with version 1.0. As of its release, there have been no further updates listed.

### What is the 'Drone mode' in Oscillator 3?

Drone mode in Oscillator 3 allows any notes to be played back continuously. The sustain level is controlled by the 'Sustain' knob, making it useful for creating sustained sounds or textures.

### What is the user rating for Oscillator 3?

Oscillator 3 has a user rating of 4.3 stars based on 9 ratings. This indicates a generally positive reception from its users.

### Can Oscillator 3 be controlled via MIDI?

Yes, Oscillator 3 is playable via MIDI, allowing you to connect external MIDI controllers or keyboards to control the synthesizer's output.

## Version history (last 1 release)

### 1.0 — 2021-10-21

No release notes.

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| --- | --- | --- | --- |
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## More apps by Cooperator Design

- [LE04 \| AR-909 Drum Machine](https://appshunter.io/ios/app/le04-ar-909-drum-machine/id1530586523)
- [Oscillator 1 - Sine](https://appshunter.io/ios/app/oscillator-1-sine/id1570712228)
- [Oscillator 2 - Square](https://appshunter.io/ios/app/oscillator-2-square/id1570715258)
- [Oscillator 4 - Saw](https://appshunter.io/ios/app/oscillator-4-saw/id1570717041)

All apps by Cooperator Design: https://appshunter.io/developer/1206655266

## Related topics

[the oscillator](https://appshunter.io/ios/topics/the-oscillator) · [oscillator](https://appshunter.io/ios/topics/oscillator)

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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 2026-08-18.*