iPad Screenshots



Introducing Modstep, Modulation Monster and the first full-blown MIDI sequencer for the iPad. Modstep allows you to create music and jam with your iPad and your favorite IAA Apps, Audio Units, Mac and PC software and MIDI hardware as well as the internal drum sampler and synth. Use it as the centerpiece of your setup to create and perform music on the go, in the studio and on stage.

"If you´re looking for a versatile, adaptable MIDI sequencer for iOS, Modstep comes highly recommended"
Sound On Sound

“Modstep could change how an iPad fits into your music making”

“If you’ve ever dreamed of a touchscreen brain for your studio, this is it.” FACTMag

"Modstep is a great step forward for step sequencing.”

-Session-style MIDI sequencer with unlimited tracks & scenes.
-Play individual clips or whole scenes, or use the included arrangement features to manage more sophisticated song-structures.
-Clips are pattern based which allows quick edits on the fly. Set a variable speed per pattern.
-Edit clips with either the Step Sequencer or the Piano Roll
-Step Sequencer with active steps and step-shifting.
-Piano Roll with variable quantization including triplets, access to modulations, velocities and scales.
-Everything can be edited, arranged, modulated or changed in real-time.

-Note Repeat from 1-48th to 1/4th.
-Global Swing
-Unlimited MIDI & Audio tracks - only restricted by the power of your iPad.
-Tempo range from 20 to 999bpm.
-Sync via Ableton Link.
-Stable and low-latency MIDI Clock In & Out with latency adjustment.
-Trigger out

-integrated global keyboard with scales & drum-pads allow quick recording of individual tracks with a single surface.
-Use an external controller or keyboard to control, record or play any given track.
-Midi mappable via external MIDI controllers

-Internal additive synth with up to 64 harmonics per voice, 3-band eq, delay, reverb, lfo and detune.
-Internal sampler with pitch, volume, reverse, fx per slot, 3 band-eq, delay and reverb.
-Integrate any IAA compatible app or Audio Unit as an instrument or effect.
-unlimited number of effects per track.
-Audiobus support.
-convenient plugin management via drag and drop.
-Integrated mixer with Arm, Mute, Solo per track

-Any loaded instrument or external MIDI hardware is completely modulatable via CCs.
-Up to 128 CC modulations per track.

-Audio and MIDI streaming directly via charger cable to Mac and PC using studiomux technology
-Export sample perfect loops of audio per track. Choose which channels to record. The internal quantization will make sure they are sample-perfect and ready for any DAW.
-Import / Export of MIDI files.
-Import / Export of Audio & MIDI files via AudioShare.

-A sophisticated template system allows quick setup of tracks to control external MIDI hardware, apps or plugins.
-Includes many preconfigured templates for popular external hardware.
-Template editor to create your own templates for IAA Apps, desktop Apps and external MIDI devices
-Supports all MIDI interfaces for the iPad
-Works on all iPads (iPad 1 restricted to MIDI only)

iOS 8 or later
for audio and MIDI streaming to a Mac or PC, the studiomux server software is required: get the latest for free at studiomux.net

You can find the manual here: http://www.modstep.net/manual

What’s New

Version 1.3.2

- fixed a bug that could occur when loading defective AUv3 effects
- fixed a bug with sending and receiving MIDI Clock

Ratings and Reviews

3.2 out of 5
33 Ratings

33 Ratings

civilians become warriors ,


I can’t do anything in this app. I have the newest iPad (2018) and every single time I try to load a synth into a track it crashes. I can only seem to open Modsteps own synth and sampler. I’d really like to use this app, so far it’s a no go.

Reply to dev.
Amimoog, loopy hd, sylo synth,iElectribe,fugue machine, synth one,scythe synth,fm player,Europa, FieldScaper, morphwiz,blocs wave, launchpad, reactable, soundprism pro,
Basically, every single app that I have under IAA instruments in the browser. Every single one of them crashes your app.
The only thing that doesn’t crash your app are the TWO items in internal instruments in the browser. I imagine if I download ANY other synth, it’ll crash your app also.
I’m using 2018 iPad (6gen)software v 12.3.1

Update to review. After much frustration and a lot of trying different things, I finally got this working! Now that that’s settled, I’m actually enjoying this app very much. Upping the stars!

Developer Response ,


Could you let us know which Synth it is that you are trying to load? we'll try to reproduce the issue and fix it asap!

Please keep us posted!
Thank you,

legittristan ,

Modstep is live performance gold!!!

Modstep is such a great sequencer! It has by far the most functionality of any music production apps for iOS, but it does have a steep learning curve and a few quirks. While it’s definitely daunting for amateurs, it has just about everything a pro could want for live production and performance including extensive MIDI control and mapping.

A few minor tweaks that would make a lot of the Modstep community very happy are: 1) A MIDI CC option to launch the next/previous scene, instead of having to map each scene to a control. 2) A dedicated “undo” button since it’s very disruptive to workflow to have to load from the auto-saves. 3) Metronome volume adjustment and panning. 4) The ability to mute MIDI notes (not just channel audio) so that instrument loops can be brought in and out of the mix, in-time, and with effects (reverb tails, etc.). 5) Support for AU MIDI plug-ins... and though this is one of the most “mappable” MIDI apps out there, the ability to map even more stuff is always great. ;) Thoughts from the devs?

cuezaireekaa ,

One of the best sequencers I’ve ever used

At first I didn’t like this app because of the constant crashes. So I refunded it. Then I tried it again hoping to have better luck and voila!
This is a very good app for sequencing and clip launching. Great for live play as well. It does crash a lot when loading in certain auv3 and iaa but I jus route all the midi clips to instruments in AUM. Pretty stable that way. And then I add effects in aum. I wish it was more stable. It really needs an update. I hope this isn’t abandoned.
It really needs undo and redo functions. Also a big bonus would be I we can hav midi auv3 functions. Totally will support this dev if he doesn’t abandon this great app. Right now it’s my favorite “daw” style app for launching clips and experimenting. PLEASE update it sir. Thank you. Would be willing to beta test anything...


Christian Blomert
104.1 MB

Requires iOS 7.0 or later. Compatible with iPad.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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