R4X Groovebox
R4X

R4X Groovebox

Build beats, sample sounds, play live — 8 groups, 16 pads, built-in synths, a song editor. One-time purchase, no subscription.

Coming to the App Store October 1

Try it — right here

Tap the pads or hit play: a dembow made of real R4X sounds. Every step can be rearranged.

DEMBOW · 108 BPM
Tap a track name to swap its sound · 100 % R4X one-shots

The app

Pads and step sequencer
Pads and step sequencer
Song editor with audio tracks
Song editor with audio tracks
Sampler with beatbox recording
Sampler with beatbox recording
Mixer with insert effects
Mixer with insert effects

Buy once, done

No subscription, no account, no add-ons. The app is yours.

Everything on board

Drum synth, strings, FM, sampler, note repeat, automation, export — no extras needed.

Nothing leaves your studio

No data collection, no server. Works fully offline.