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Helium AUv3 MIDI Sequencer

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App History

Version 1.16
Jun 09, 2021
Version 1.15
Jun 07, 2021
Version 1.14
Jun 02, 2021
Jun 01, 2021
May 30, 2021
Version 1.13
May 28, 2021
Version 1.12
May 25, 2021
Version 1.11
May 18, 2021
Version 1.10
May 13, 2021
Version 1.09
May 08, 2021
Version 1.08
May 07, 2021
Version 1.07
May 04, 2021
Version 1.06
May 03, 2021
Version 1.05
Apr 28, 2021
Version 1.04
Apr 24, 2021
New App: $9.99, v1.04
Apr 22, 2021

Other apps by 4Pockets.com

App Store Description:

Helium is a lightweight AUv3 MIDI sequencer plugin designed specifically for AUM. It supports up to 16 tracks of unlimited length with the ability to direct output to 16 channels on up to 16 MIDI output ports.

One of the great features is the ability to import and maintain libraries of MIDI clips using Helium's 'Media Bay'. These clips are freely available all over the internet and may contain individual chord sets, chord progressions or drum tracks. You can quickly build a song by dragging and dropping your MIDI clips from the media bay onto your timeline. You can also save your own clips directly to the media bay to create your own personal MIDI clips libraries. Long press on a clip to preview its contents using the currently selected MIDI device.

Helium now ships with a library of over 7000 MIDI clips, consisting of every chord and chord progression you could ever need.

Helium allows many different ways to import additional MIDI clip libraries. Simply drag and drop your ZIP collections directly to your PC/MAC web browser and they are automatically unpacked into the clips library folder. You can also drag and drop files between the Media Bay and the iOS Files app.

Helium supports a sync mode called 'Remote Looping'. This was something we recently introduced into our MultiTrack Recorder plugin and is very useful for breaking down the timeline into sections.  You can define up to 12 loops which can be used to specify the locations of say the intro, verse, chorus, and outro within your song, then trigger these loops seemlessly in sync with the host tempo. Once captured, these loops can then be triggered by incoming MIDI notes.

A new addition to Helium is the ability to piece together loops into songs, so you just concentrate on creating a single verse, chorus, bridge etc. and piece everything together without the headache of having to re-arrange your timeline.


○ 16 Tracks per instance.
○ Includes a library of over 7000 MIDI clips.
○ Assignable MIDI channel and Bus per track.
○ Full editing of CC controllers using the controller lane.
○ Independent vertical and horizontal zooming.
○ Import & Export MIDI tracks.
○ Media Bay, organize your MIDI flips libraries.
○ Clip Preview from Media Bay
○ Drag and Drop from the Media Bay directly to the timeline.
○ Drag and Drop to Files App.
○ Remote Control with Looping advanced functionality.
○ Step Recording.
○ Build in Mixer to adjust relative track levels with Mute/Solo.
○ Sync to Host.
○ Up to 16 outputs (configurable).
○ MIDI Clip Preview
○ Ghost Note Feature
○ Multi level undo and redo.
○ Song Mode
○ Multi-Take Record

Please checkout the help manual for details on where to find my tutorial videos on Helium and where to download some fully featured and free MIDI clip libraries.

This is not recommended to use on small iPhone screen sizes such as the SE models. You can adjust the screen scaling to suite your iPhone model by long pressing the MENU button and changing the scale.

What's new in v1.16

Added the ability to size the controller lane by dragging the ruler when activated. (TAP and HOLD Controller to enable additional ruler)
Fixed an issue that caused the display to not properly update with the current custom grid when loading from a session.
Added an experimental auto-save feature. (TAP and HOLD menu and enable from system toolbar).
Other minor bug fixes.

Added the ability to design custom layouts.
Moved some of the main menu items into a Settings submenu.
Fixed an issue with snap to grid in 3/4 time signature.
You can drag and drop from the custom layouts window to the Files App for backup purposes.
You can now import .layout .mid, and .helium files from the iOS Share Sheet.
This version has a new curve tool which is only available when editing controllers (not notes and velocities). Unlike other tools additional options are available while dragging a curve by tapping on the 'Curve' icon during the drag process.
You can now TAP 'Select' (when active) to quickly toggle the state of all notes or controllers (alternative to long press).

iPad Screenshots:

iPhone Screenshots:


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