Otoo is a fun, one-screen music maker designed to get you creating right away. Sketch melodies freely on the grid (no more rigid rows) and remix your beats live with hands-on Performance Mode effects. It’s intuitive enough to play without a manual, but deep enough to keep you growing.



Beautifully simple workflow

• Free-form step sequencer with instruments not tied to fixed rows
• Single-screen workflow with sequence, song structure, and mixer always visible
• Tap or drag notes onto the grid to build beats and melodies
• Stack notes to create chords
• Per-step control of length, subdivision, and velocity
• 4 rows on iPhone and 5 on iPad, with multiple instruments available in each row at different steps
• 2-octave keyboard for playing and learning real notes
• Multi-gesture mixer for switching instruments, muting, soloing, and adjusting volume

Sounds and plug-ins

• Up to 8 instruments per project
• Built-in sounds and sampler
• Use any installed AUv3 instruments in a large, near-fullscreen view with a compact keyboard
• Up to 2 AUv3 effects per instrument
• Sampler with instant key-by-key recording and chromatic mapping

Patterns to full songs

• Build songs from simple patterns
• Draggable loop markers for quick arrangement changes

Performance mode

• Live sequencer and audio effects such as reverse, beat repeat, randomize, swing, triplet, tape, and more
• Play the pattern like a keyboard by tapping steps directly

Other features

• Main output with built-in level protection
• Automatic metronome when recording live into empty patterns
• Export patterns or full songs as WAV or MP3 for easy sharing

$4.99

One-time purchase. No subscriptions.

Universal Purchase: iPad • iPhone • Mac