BLEASS groovebox brings music production and performance to its very core: play, perform, compose beats, chords and melodies in a new yet intuitive way thanks to its multitrack sequencer, monophonic & polyphonic synthesizers and drum machines.

BLEASS groovebox has been designed for both iPhones and iPads and offers great performance and stability thanks to its powerful realtime audio engine and fully customizable parameters: go deep in the shaping of electronic sounds without being limited by factory presets.

Record, import and edit your own samples and make sick beats out of the 16 steps sequencer with customizable filters and grooves.
Customize endlessly your mono synths and chords by tweaking the filters, envelopes and LFOs !

BLEASS groovebox is the perfect live tool: Record/Edit/Start/Stop/Copy/Paste your patterns as you feel like, build and arrange your songs on the fly, apply reverb or delay effects, and let the music live!
Thanks to its unique slider controls and long-press ergonomics and its unique wild sound, BLEASS almost feels like an electric guitar.

BLEASS groovebox supports Ableton Link, Audiobus and Inter-App Audio and also works in complete synergy with all of your studio soft- and hardware gear using MIDI IN/OUT and SYNC features. Manage your project files, audio export, import your own samples thanks to the Apple iOS Files Integration

> low-CPU and low-latency iOS-dedicated audio engine
> up to 16 steps per bar
> up to 8 bars per sequence
> separate groove settings per track
> live and song modes
> tap tempo
> speed control for each sequence ( x 0.5 / x1 / x2 )
> solo button for each track
> 2 FX sends
> 4 tracks sequencer
> optimized workflow for a smooth live/studio experience
> notes swapping : easily move a note to a different step

> 6 user-customizable samples per track
> sample length, attack, release and pitch settings
> low pass and high pass filters
> post and pre- drive and bitcrusher settings
> velocity settings per step (with random velocity option)
> sample importation via iCloud or Files

> up to 9 virtual-analog synthesizers for each track
> 2 oscillators + 1 noise
> 1 amplifier enveloppe
> 2 filters with 1 enveloppe
> post and pre- drive and bitcrusher
> 2 LFOs
> presets loading

> on the fly chords performance with scales
> up to 4 virtual-analog synthesizers for each track
> 2 oscillators + 1 noise
> amplifier and pitch enveloppe
> 2 filters with 1 enveloppe
> strumming
> bitcrusher
> 2 LFOs
> presets loading

> expression panels (pads or keyboard) with beat repeat
> on the fly sequence recording with automatic quantization
> sample recording (using built-in mic or external sound card)
> iCloud automatic synchronization
> live audio export
> Ableton Link compatibility
> Audiobus 3 & Inter-App Audio compatibility

You can access all the BLEASS PRO FEATURES by purchasing the full unlock (pay once and own forever).
As a PRO user, you gain access to all premium features, all samples and all presets packs, as well as upcoming new features and instruments added continuously:
> Access to all samples packs
> Projects files management : load, save, import, export…
> MIDI in/out
> MIDI LEARN (control changes)
> MIDI sync out
> Presets saving
> MIX panel
> FXs parameters customization : reverb, delay, ping pong delay
> External Audio Routing
> Virtual Audio Routing (open all BLEASS audio channels into any Inter-App Audio compatible host)

Find tutorials and more about our apps on
ToF :

What’s New

Version 1.4.0

This new version brings full IAA audio routing : you can now open each separate track of BLEASS groovebox into a host such as AUM for an even broader sonic experience!
Also, note swapping allows you to easily move a note from one step to another to speed up your creation process!

Thank you all for your great support. Don't forget to check BLEASS on the social media as well as for videos & tutorials!

Ratings and Reviews

4.3 out of 5
8 Ratings

8 Ratings

Lewis7119 ,

Good to see developer is responsive.

Good to see developer is responsive.

Developer Response ,

You will appreciate the significant price drop then. Also note that the landscape mode shall soon be available!

polarpaul ,

Groovebox with Control

You can get the beat going and tweak parameters to adjust the sounds at a very deep level with the app. The controls are well laid out and can be adjusted at various levels to deepen your beat making pleasure. Even on an iPhone, the app is very usable and the ability to send out MIDI on the tracks allows for additional work flows.

The sequencer is well thought out and there are a number of tutorial videos which make getting started a straight forward process.

housemachine ,

Love it

Clean look super responsive perfect live tool please continue to build out. Mixer needs a master dial. Some side compression options unless I missed it

Developer Response ,

Thank you for the review!
Watch for our new "sidekick" Audio Unit Plugin which offers extensive sidechain compression possibilities!


73.8 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French

Age Rating
Rated 4+
© 2019 BLEASS
In-App Purchases
  1. Full Unlock $13.99
  2. Monthly subscription $1.99
  3. Yearly subscription $10.99


  • Family Sharing

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

More By This Developer

You May Also Like