iPad Screenshots


MonoStereo Synthesizer is a free full-featured analog mono synth with oscillator panning.

App Store Reviews:
***** "This is the finest synth in its class. It has great presets and something a little extra special on it. It cuts. It's simple. And it sounds fantastic!"
***** "Great sound and interface!"
***** "So great! I have already spent hours with this little gem. A three oscillator dream."

The synth is completely free with no in-apps. If you feel the need to pay something for it, go see a gig by a local band! If that doesn't cover it, buy their t-shirt! (or their CD if you have one of those CD-players we used to have 3 years ago)

* Minimalistic size, fast loading time and CoreMIDI Support!
* Audiobus and Inter-App Audio support
* 3 Oscillators with customisable waveform (sine, square, saw), phase, level, detune and pan
* Lowpass and Highpass filters
* 2 LFO's with customisable targets from filter values to oscillator panning and detune
* Filter and Amp Envelopes
* Portamento (almost named that 'Glide' but came to my senses. Portamento is portamento!)
* Delay and Chorus effects (very basic, I know)
* A few presets
* Saving and loading your own sounds
* Virtual keyboard

If you end up using this synth for production or live performances, I would be happy to hear from you!
You can drop me an e-mail to jantunen.juho (a) gmail.com

I have a long todo-list for the (possible) updates but I'm open to feature suggestions and ideas!

What’s New

Version 1.2

* Audiobus and Inter-App Audio support! Woohoo!
* Performance optimizing

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

Profeteer123 ,

Excellent App

Great range of usable sounds. Well behaved in Audiobus, and it's free! What's not to like?

Animouse21 ,


Needs work


Juho Jantunen
4.6 MB

Requires iOS 7.0 or later. Compatible with iPad.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

You May Also Like