Circle Synth

Circle Synth

10,000 - 50,000 downloads

  • Interesting and enjoyable
  • Well-designed and minimalist
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Expert's Review

"Synthetizing Circles"

Reviewed by / Jan 08, 2014

A fun and energetic application for creating synthesized sounds

If you're interested in music and creating your own sounds, you will probably enjoy giving Circle Synth a try.

This app is basically a synthesizer with a wonderful and well-designed interface, highly usable and minimalist. What do you need to do? Simply create your own sounds by drawing shapes and applying different effects.

The app includes different features and adjustments so you can personalize your creations and give them a personal touch. Controls are responsive and there are no apparent bugs.

TwoBigEars is the developer of Circle Synth, a magical application for music fans, those creative minds who enjoy creating sounds and expressing themselves in different ways.

Tags: synth, circle synth.

Developer's original description available here
Circle Synth is a grid-less sequencer synthesizer that makes quick and quirky musical sounds. Draw shapes, choose presets, apply effects and create one bar compositions worth sharing!


* 12 different scales
* 10 presets
* Choose from 4 assignable FX for each circle or node
* Controllable BPM
* Accelerometer controlled filter sweep
* Record your sketches and even set them as ringtones!
* Save and share your musical sketches

Let us know what you think and we'll do our best to include your feedback in our next update. Email us: or tweet: @TwoBig_Ears

Permissions used:

* Phone Status: To pause and resume Circle Synth if you receive a phone call
* USB Storage: To save presets and recordings
* Network Access: Google services
* System Settings: To set recordings as ringtones

Recently changed in this version

* New record feature! Also set your recording as a ringtone
* Circles are now moveable
* Saved sketches now retain settings
* Major performance improvements
* Visual and animation improvements
* Minor bug fixes
* No more ads!

Lists with Circle Synth

Some lists where this application appears: Reviewed by Anna Grace.

Comments and ratings for Circle Synth
  • (62)

    by Victoria Melton on 12/03/2014

    What little it did, was enough to make me wish it worked properly. It opened readily enough but lost my composition and seldom lasted more than a minute or two between crashes on the Asus Transformer Infinity.

  • (62)

    by David Margolin on 05/01/2014

    Slows down when there are too many circles on the field but that's prob cause of my hardware. This is so much fun to play with and it looks good too!!! Galaxy Reverb - 4.1.2 - Stock Rooted - Slightly Overclocked + Custom Kernel

  • (62)

    by Fabrizio Aragón on 26/12/2013

    Awesome! my son really appreciates the minimalisitc simplicity 4 music lovers only.

  • (62)

    by Fabrizio Aragón on 26/12/2013

    Awesome! my son really appreciates the minimalisitc simplicity 4 music lovers only.

  • (62)

    by shincosmo on 23/11/2013

    It is an entertaining app. And the music I can do us recordable. I kinda hope for more effects though. :)

  • (62)

    by Ivan Azymov on 20/11/2013

    Orientation is locked (does not flip with tablet). Please allow for auto orientation.

  • (62)

    by Sohom Chatterjee on 22/10/2013

    It wud hav been amazing to add triangles or squares or any shapes having other octave or note than the circles. May b we can bring a mixture in and add variety to the same composition..