jAmpler vs GrainHeads
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
jAmpler
Record, import, and manipulate audio samples with a versatile instrument plugin. Create unique sounds using granular synthesis and a wide array of effects. Assign samples to a keyboard for intuitive musical performance.
- Record and import audio samples
- Assign samples to keyboard keys
- Granular synthesis controls
- Extensive per-sample editing
- Global effects suite
- Adjustable velocity curve and temperament
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jAmpler is a sample-based instrument plugin for iOS and macOS, designed as an Audio Unit v3 (AUv3) instrument. It enables you to record, import, assign, and manipulate samples with a rich set of controls and global effects — all accessible in a compact, intuitive interface. Features: * 4 banks, each with 8 samples. * Each sample is represented by a unique color. * Record samples directly using your device’s built-in microphone. * Import audio files to use as samples. * Assign samples to keyboard keys using their color codes. * Detailed controls per sample: - Copy, paste, and trim samples. - ADSR envelope (Attack, Decay, Sustain, Release). - Crossfade and crossfade overlap for seamless looping. - Octave shifting and drive/distortion. - Filter and pitch shift options. - Granular synthesis controls (wet, density, size, spray, stereo spread, window shape). * Global effects: - Velocity Controlled Filter. - Low Frequency Oscillator. - Compressor. - Distortion. - Equalizer. - Chorus. - Cabinet. - Reverb. * Adjustable velocity curve and keyboard temperament.
GrainHeads
Transform any sound into unique textures and evolving sonic landscapes. This granular synthesizer offers deep control over individual sound grains, complex modulation, and a powerful step sequencer for experimental music creation.
- Multi-source granular engine
- Shape individual grains with envelopes
- Summing modulation matrix
- Step sequencer with parameter lanes
- Macros for expressive control
- Re-routable effects chain
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GrainHeads is a granular synthesizer that turns any sound into something entirely new. Built for sound designers, musicians, and experimental producers who want deep, hands-on control over texture and motion. Multi-source granular engine Load material into four sample slots and deploy independent playheads — each targeting its own source. Blend, crossfade, or dynamically switch between samples using modulation. The result: rich, multi-layered textures that evolve continuously without repetition. Shape every grain Each playhead carries a full set of granular parameters — position, scan speed, grain size, pitch, chance — plus a drawable grain envelope. Sculpt transient character using splinter or Bézier curves for anything from soft clouds to sharp, percussive fragments. Modulate everything, from everywhere A summing modulation matrix lets multiple sources target the same parameter simultaneously. Assign LFOs, envelopes, and sequencer lanes to virtually any control — including sample slot selection, filter cutoff, and even other LFOs. Filter envelopes add per-step timbral motion in Sequencer mode. Sequencer with parameter lanes Go beyond note patterns. The step sequencer locks any parameter per step — pitch, position, filter, grain size — with polyrhythmic lengths and clock divisions. Each playhead runs its own sequence independently. Macros for expressive control Four macro axes map multiple parameters to simple X/Y gestures — Time Smear, Spatial Bloom, Degradation, Complexity. Combined with the 4-finger 2D touch pad controlling up to 8 parameters, GrainHeads becomes a performance instrument. Effects that reshape the signal A re-routable effects chain includes delay, reverb, lo-fi degradation, and filtering — with adjustable signal flow so effects interact in the order you choose. Key Features • AUv3 instrument and effect plugins — use standalone or inside your DAW • Up to 8 independent granular playheads • 4 sample slots with per-playhead source selection • Drawable grain envelope (splinter / Bézier curves) • Summing modulation matrix — multiple LFOs, envelopes, and sequencer lanes per target • LFO-on-LFO modulation for deeply nested movement • Step sequencer with parameter locking and polyrhythmic clock divisions • Filter envelope per step (Sequencer mode) • Per-playhead dual Moog-style ladder filter (self-oscillating, with overdrive) with link and mirror modes • 4 macro axes (X/Y pads) for multi-parameter gestures • Re-routable effects section (delay, reverb, lo-fi, noise, limiter) • Scale quantization — chromatic, major, minor, and exotic modes • Dice — one-tap randomization for instant inspiration • Ableton Link • Import/export presets • Customizable look and feel PRO version unlocks loading external samples and microphone recording. GrainHeads turns granular synthesis into a hands-on instrument — not a menu-diving exercise.
Screenshots
Verdict
The clearest difference is rating: GrainHeads at 4.7 against jAmpler's 4.2. GrainHeads also leads on update cadence (every 3 days vs every 3 months) and monetization model (free vs free with in-app purchases). jAmpler's advantage is device support (4 vs 2) and iOS requirement (14.0 vs 17.6). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. jAmpler sells 1 one-off in-app purchase and GrainHeads sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
GrainHeads holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 6 and 14 respectively.
jAmpler ships an update every 3 months, GrainHeads every 3 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.
| Parameter | jAmpler | GrainHeads |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (6 ratings) | 4.7 (14 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 6 | 14 — better |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 1.4 GB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Jan Maes | Andrei Nevar |
Customer experience
jAmpler
GrainHeads
In-app purchases
jAmpler
- jAmpler Activation$7.99
GrainHeads
- Unlock GrainHeads Pro$11.99







