DuoBeat Music Maker

DuoBeat is a pocket groovebox: an 8-track drum machine, sampler and step sequencer you can play with one thumb. Tap in a beat, turn a few knobs, and it's already sounding like a track.

Made for iPhone Duo and at home on every iPhone and iPad. Fold an iPhone Duo halfway and DuoBeat becomes a little instrument, with the screen above the fold and the controls below. Close it and the whole groovebox fits on the outer display. Fold it while a beat plays and the hinge builds a riser that drops on the next bar.

Make Beats
• 8 tracks and 16 glass keys: tap steps on and off, or play the pads live
• 4 knobs per track: tune, decay, fold and cutoff
• Step locks: hold a step and turn a knob to change just that hit, plus velocity, chance, repeats and nudge
• 16 scales (patterns) per project, switched on the bar line and chained into a song
• Start blank with a kit's sounds, or from a template with its demo beat
• Mixer with level, pan, echo, mute and solo
• Swing, tempo and a metronome, and undo for everything

Sounds
• 103 built-in sounds in 7 packs: Trap, 8-bit, House, Techno, Synthwave, UK Garage and Lo-fi, each with a ready-made kit and demo beat
• A synth voice on every track, from kick and snare to bass and the wavefolder
• Record your own sounds with the mic, or resample the beat
• Sample editor: trim, reverse, slice into 4, 8 or 16 pieces or by hits, one-shot or gate
• Browse, preview in your beat, and save your favorite sounds and kits in My Sounds

On all your devices
With iCloud, your projects and My Sounds sync between your iPhone and iPad, and projects appear in the Files app. Edit offline on two devices and DuoBeat asks which version to keep, so nothing is lost.

Share and export
• Send a beat, kit or sound as a single file with AirDrop, Messages or Files, or as an iCloud link anyone with DuoBeat can open. Your name stays with it, and remixes credit the original
• Make a 9:16 video clip of your beat for Reels, TikTok and Stories
• Export a scale or a whole chain as WAV, AIFF, CAF, ALAC or AAC, at 16, 24 or 32-bit

Feature mode
Film a performer over your beat. On iPhone Duo the performer sees the count-in and lyrics on the outer screen while you hold the phone. Takes save to Photos with the beat recorded straight from the app, clean whatever the room.

Make it yours
• Night, Day or System theme, six highlight colors and a dot-matrix typeface
• A pixel buddy on the screen who dresses for each track, sings along and falls asleep when you stop. Tap it.
• A quick tour shows you around, and a full owner's manual in Settings goes deeper

Accessibility
VoiceOver labels and actions for every control, Reduce Motion, Increase Contrast, Bold Text and larger text in menus.

DuoBeat Pro
DuoBeat is free, with one small ad in the projects list and one while a clip renders. Never on the instrument, and never while you play or record. DuoBeat Pro is a one-time purchase that removes the ads and adds:
• Stems export and MIDI file export, ready for your DAW
• MIDI input from USB-C and Bluetooth controllers, and MIDI clock out to sync other gear
• Four vintage looks, each with its own buddy outfit
• Video clips without the end card

Your music stays yours. DuoBeat has no accounts and no one ever sees your projects: they stay on your device or in your own iCloud, and go only where you share them.