Riffer is a creative MIDI sequencer that generates random patterns and melodies for you. Designed to feed any Synth, Sampler, Drum Machine and anything that accepts MIDI signal both software and hardware. You can choose scales, complexity, steps, start and end points, playback motion, set pitch, transpose, measures and many more.

Generate fresh ideas, sequences, melodies, riffs and musical patterns. Turn them into something of your own, or let it run endlessly using the Infinity mode. Riffer is built both for studio and live performance. The app includes a huge variety of scales, from western to eastern and you can save your favorite Riffs for quick access.

Featuring MIDI output support over WiFi or MIDI cable. Riffer also supports Ableton Link for tight sync between apps on the same network.

What's New

Version 1.1.2

Saving presets and Sync internal data between Standalone App & AUv3 Plugin

Ratings and Reviews

3.4 out of 5
16 Ratings
16 Ratings
Toneman182 ,

Integrate with Xequencer?

So far, Ive enjoyed using this to directly pipe MIDI to my iOS synth apps. But, I thought this would be simple to integrate into the Xequencer MIDI Sequencer app (which I love). Am I missing something simple? I thought it was going to be a “sequencer that runs inside your sequencer” but I can’t seem to get that to happen. Is there a Forum or other place for users to help with this kind of question? I did see the FAQ page.

Thanks - this app is very cool (along the same vein as Sector) - I’m just trying to get it to work seamlessly with Xequencer, hopefully without having to resort to AudioBus.

Spiteface ,

Buggy and not made for iPhone

Really wanted to like this app -so disappointed. First, there has been no attempt at all to make this usable with an iPhone screen size. The font size is nearly microscopic on my 8 plus. However, I was willing to live with this once I learned by trial and error where things were and accepted that it would take multiple taps to actually hit my tiny targets. Once I was able to use the app I got many great results and song ideas. Saved them and when reloaded found the patterns were replaced by a single repeating note. Came back a day later and found all my saves were totally gone. Completely useless.

Developer Response ,

Hello, is this problem on the Standalone App or the AUv3 plugin? Please contact us here: so we can learn more about your problem.

mcfripp ,

Serious Flaws (revised)

The midi and transport functionalities are seriously flawed. Note tie and sustain do not function properly when used in conjunction with note probability. This could be a great app. I question the choice of making it AUv3 compatible before fixing these issues.

Response to Developer:

Thanks for the update. When Ableton link selected and Sync Start/Stop deselected, transport does not begin on step one.
Midi Import selections do not stay deselected. Impossible to deselect all choices for no midi input. Would be nice to have more real estate in the UI for that.

Just tested latest version. I see now that volumes of ghosted notes (greyed out) must be changed manually in order for them to be filtered from the output. Can that be implemented programatically?

Developer Response ,

Hi, These problems have been solved, Please kindly update to the latest 1.1.1 Version


6.1 MB
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+


  • Family Sharing

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

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