GranSample

Sample. Granulate.
Perform.

A 16-pad sampler powered by granular synthesis. Record anything. Sculpt it grain by grain. Sequence it on the spot.

Download on the App Store
For iPhone & iPad · iOS 16+
Roadmap

What's shipping.
A window into the workshop.

Built in the open — here's what just landed and what's next.

  1. Declick fade-outs

    Eliminated clicks on kick and bass hits.

  2. Pitch correction + GranSample Pro

    Snap grains to any key; unlock all 16 pads and WAV/M4A export.

  3. Five new scene presets

    Midnight Dub, Tape Machine, Crystal Cave, Sunrise Choir, Dark Matter.

  4. Multi-pad granular engine

    Thread-safe voice allocation and per-pad 1/√N master compensation — drop granular on every pad without crackle.

  5. Smoother linear retrigger

    Crossfade the old cursor on retrigger to mask waveform discontinuities.

  6. Sample-accurate sequencer

    Audio-thread-driven scheduling — rock-solid grooves at any tempo.

  7. Chromatic mode

    Fan one sample across all 16 pads at semitone pitches — play melodies from any sound.

  8. Song mode

    Chain patterns into verse → drop → breakdown arrangements on one track.

  9. HQ pitch interpolation

    Higher-quality resampling at extreme pitch offsets — less aliasing on big transposes.

  10. Ableton Link

    Sync tempo with DAWs and other iOS apps over Wi-Fi.

  11. Adaptive grain budget

    Dynamically share the 128-grain pool across active pads — busy pads get more voices automatically.

  12. MIDI & AUv3

    External MIDI control and AUv3 plugin host.

  13. Low-power mode

    Reduce CPU when playback is idle — extend battery for long sessions.

  14. Stereo grain spread

    Per-grain pan randomization for wider pads without stereo widening artifacts.

  15. iCloud project sync

    Keep scenes and samples in sync across iPhone and iPad.

Inside the app

Everything a sampler should be.
Nothing it shouldn't.

Sixteen pads. One hundred twenty-eight grains. Endless possibilities.

GranSample pad grid
Play

A 4×4 grid built for fingers.

Sixteen pads, each with its own sample and live waveform preview. Tap to trigger, hold to tweak, swap the whole kit with a scene name at the top. Step sequencer right below the grid.

Granular synthesis controls
Synthesize

Sculpt sound, grain by grain.

Five knobs — Size, Density, Pitch, Spray, Spread — plus four window shapes (Hanning, Gaussian, Triangle, Trapezoid) and reverse playback. Up to 128 grains at once. Switch between Linear and Granular on the fly.

16-channel mixer
Mix

Sixteen channels on one screen.

A full mixer: volume fader, pan knob, mute, and solo per pad. Color-matched to the grid so you always know what's where.

Effects chain
Shape

Effects on every pad.

EQ, Compressor, Reverb, Delay, Distortion, Chorus, and a multi-mode Filter — seven effects, stackable up to eight per pad, chain reorderable anytime.

Sample recorder
Capture

Sample the world around you.

Up to 60 seconds from your mic. Scale Lock pitches your source into any root (C–B) and scale (Maj, Min, Penta, Dor, Phr, Chrom) — perfectly in tune before it hits a pad.

Step Sequencer

16, 32, or 64 steps with per-step velocity, synced to the metronome. Tap steps live while pads play.

Pick a Vibe

Ten scene palettes to start from — each loads a whole kit and effect chain tuned to a mood.

Linear + Granular

Toggle any pad between clean one-shot playback and full granular synthesis. Same sample, two completely different instruments.

Make something
that's never been heard.

Free to download. No accounts. No tracking.

Download on the App Store