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Synthesizer

Synthesizer

by Stefan Welebny

50 ratings
19 reviews
📚 Education
🎵 Music

Archived App (Last seen on 4 Jul 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Lowest price: Free a year ago (-100%)

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Price history

Details

  • Released
  • Updated
  • October 4, 2008
  • January 5, 2026

Features

Developer

Stefan Welebny
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About

Transform your iPhone or iPad into a versatile synthesizer using additive, subtractive, and FM synthesis. Explore a wide range of sound-shaping tools and effects, with support for external MIDI input and accessibility features.

✓Additive, subtractive, and FM synthesis
✓5 main oscillators
✓Frequency modulation and LFO
✓Chorus, pitch shift, and distortion effects
✓External MIDI support
✓VoiceOver and DirectTouch accessibility
✓Screen recording for sound sharing
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What's New in Synthesizer

13.1

January 5, 2026

• Fixed an issue where playback could be silent on Bluetooth headphones • Better handling of switching between AirPods and the iPhone speaker while the synth is running • Stability and reliability improvements

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User reviews

Most RecentHighest RatedLowest Rated

Love this

Such a great app. Good for the analog synth fans. Don't bother if you're trying to write dance music or sequence nin style melodies but if you love effing around with Arps or apcs or pretending you own a theremin, you'll like it.
Sir cut benderSir cut bender

Bob saget!

Bad.... Bad bad bad
----.-?----.-?

Hate it!!!

Worst app ever!!!
Lil' PetersLil' Peters

Yes!thanks.......

I really like the way this synth sounds - and we are using it for recordings. Exactly what I was looking for in a synth and I can have it on my phone. Deserves speeding up touch response, de crash & de bugging - a really good little instrument . The fret board is a little bit small for average fingers. Just needs an update.
Gmm246
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Gmm246Gmm246

Worth the price

But rather limited. I find myself getting bored with it. Not bad either way.
JlabsJlabs
See 14 more reviews

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FAQ

What synthesis methods does Synthesizer use?

Synthesizer utilizes additive, subtractive, and FM sound synthesis methods to create a wide range of sounds. This allows for diverse sonic exploration and sound design possibilities.

Can I connect external MIDI devices to Synthesizer?

Yes, Synthesizer offers external MIDI support and automatically listens to any connected MIDI input. It responds to notes, modulation wheel, and pitch bend in real time while allowing simultaneous use of the on-screen pad.

Is Synthesizer accessible for users with disabilities?

Synthesizer is accessible with VoiceOver and DirectTouch, ensuring a usable experience for a broader range of users. This commitment to accessibility makes it a more inclusive music creation tool.

How often is Synthesizer updated?

The latest version of Synthesizer is 13.1, last updated on January 5, 2026. This indicates a recent update, suggesting ongoing development and support for the application.

What is the price of Synthesizer?

Synthesizer is available for a one-time purchase of $11.99. This is a paid application, offering full access to its features without further in-app purchases or subscriptions.

What devices is Synthesizer compatible with?

Synthesizer is designed for iPhone. While it is an iOS application, specific compatibility with iPad models may vary depending on the iOS version and device hardware.

What is the age rating for Synthesizer?

Synthesizer has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or potentially disturbing material.

How can I reset Synthesizer to factory settings?

You can reset Synthesizer to the factory settings for the current sound by shaking your device. This is a quick and convenient way to revert to default parameters if you wish to start fresh.