Xynthesizr 4+

32-step matrix sequencer/synth

Yuri Turov

    • 4.8 • 220 Ratings
    • $6.99



Xynthesizr is a streamlined yet capable 32-step matrix sequencer/monotimbral synthesizer with generative features and MIDI.

"This really is a lot of fun and, hooked up to a synth like Thor or Z3TA+, there are plenty of creative options to be explored here." - John Walden, musicappblog.com

"Xynthesizr is about the only tone matrix app that can keep up with my short attention span. There are so many ways to shape, and constantly reshape, your sound... There's a lot to play with here!" - Tim Webb, discchord.com

"Overall, Xynthesizr is a very interesting instrument that is fun to play and lovely to look at." - Tom Flint, Sound on Sound

"Xynthesizr holds a lot of creative potential, and between a user friendly interface, a practical onboard synth, inspiring generative features, and solid MIDI implementation, this is a useful tool that can really benefit a wide range of iOS musicians." - Chip Boaz, iosmusicandyou.com

"...one of my absolute go-to apps" - Sean Garland, iosmars.com

Create patterns and modify them in real time, or let Xynthesizr do it for you using its morphing algorithms. Change scale and key, or transpose within a scale on-the-fly. Tweak parameters of the internal synthesizer or output MIDI to your favorite apps and devices. Record and share your creations.

General features:
◦ MIDI support for syncing and sending notes to synths, samplers and drum machines
◦ Notes to MIDI channel mapping for driving multiple apps or devices simultaneously
◦ MIDI input to control transposition with note messages and synthesizer/sequencer parameters with CC messages
◦ Ableton Link support
◦ Audiobus 3 support
◦ Inter-App Audio support
◦ 40+ bundled presets
◦ Save, export and import your own patterns and presets
◦ Record and export audio

Sequencer features:
◦ Gestures to easily edit patterns on-the-fly
◦ [Conway's Game of] Life-like cellular automata and probability-based pattern morphing
◦ Limit pattern morphing to a selected area of the grid
◦ Variable tempo, step length subdivision and pattern length
◦ Variable velocity per step
◦ Selectable keys and scales with ability to transpose in real time
◦ An option to tie consecutive notes of same pitch to make longer notes
◦ Shift and flip patterns
◦ Create and use your own scales and Life-like cellular automata rules
◦ Color-coded octaves

Synthesizer and FX feature:
◦ 32-bit floating point sound engine
◦ 16 voice polyphony
◦ 2 antialiased oscillators per voice
◦ 4 waveforms (sine, triangle, sawtooth, square)
◦ 4-pole (24 dB/oct) low-pass resonant filter
◦ 2 ADSR envelope generators (amplitude and filter cutoff frequency)
◦ 2 LFOs to modulate 4 selectable LFO targets (filter frequency, pitch, amplitude, second oscillator detune)
◦ Stereo delay, reverb and randomized panner

What’s New

Version 1.6.5

Fixed Key and Transposition UI layout issues on some iPhone models

Ratings and Reviews

4.8 out of 5
220 Ratings

220 Ratings

TheDudeAbided ,

Best step sequencer

Easy to use, stable, fast to program; use it to control your other iPad synths and drum machines. Visually, you can be looking at up to four different MIDI outputs simultaneously on one screen interface, which can be very helpful: bass, drums, keys x 2 for example. Also good for real-time tweaking of sequences on the fly. 32-steps, you can choose seq. length, so odd time signatures like 9/8 are no problem, which is a BIG plus. Internal synth is actually pretty good too. Velocity programming is a breeze, would love to see that extended to other modulation, filters or volume. This also has very robust generative features.

david_kreisberg ,


I can’t stop exploring all the great features of this app. Every time I wonder if a particular feature might be implemented, I find that it not only there, but it exceeds my expectations. I liked the app so much that I purchased the other two apps by this developer.

Lundberg02 ,

19 steps

Could be good for loops if you could get the steps past 19. Not even with a stylus. Hard to even get it back to 16. Change it to a slider. Not sure why there should be odd numbers anyway. Fun to play with you don’t try to adjust anything. Lowered to 2 stars because the manual I finally found is no help. Edit: found that if you go into settings and change Knobs to linear you can get all 32 steps. Raised stars to 4, but now the tempo is 119.8 and I can’t get it to 120.

App Privacy

The developer, Yuri Turov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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