Comparison

GrainHeads vs GrimoHex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

GrimoHex

Create beats quickly with a tactile, hardware-inspired sampler and step sequencer. Record, shape, and sequence sounds for fast music production on your iPhone. Ideal for producers and beat makers on the go.

Highlights
  • Hardware-style pad workflow
  • 128-step sequencing
  • Sample recording and playback
  • Sample editing tools
  • Real-time sound shaping
  • MIDI-focused sequencing
  • Pattern-based music creation
Features
Read full description

GrimoHex is a modern sampler and step sequencer built for fast, tactile beat creation on iPhone. Designed for producers, electronic musicians, and mobile beat makers, GrimoHex gives you a focused hardware-inspired workflow without the clutter of a full DAW. Record sounds, shape samples, build patterns, and perform ideas quickly from a compact pad-based interface. At its core, GrimoHex combines a hands-on sampler, drum machine, and step sequencer into one streamlined music production app. It is made for sketching beats, building loops, sequencing drums, triggering samples, and creating patterns wherever inspiration hits. Key features: • Hardware-style pad workflow for fast beat making • 128-step sequencing for detailed pattern creation • Sample recording and playback • Trim, zoom, and sample editing tools • Real-time sound shaping controls • MIDI-focused sequencing workflow • Pattern-based music creation • Clean interface designed for speed and focus • Built for mobile producers, beat makers, and electronic artists GrimoHex is ideal for making drum patterns, sample-based beats, loops, sketches, and performance-ready ideas on the go. Whether you are building rhythms from recorded samples, sequencing external gear, or creating patterns directly on your phone, GrimoHex keeps the process fast and musical. A focused sampler. A tactile sequencer. A compact groovebox for iPhone.

Screenshots

GrainHeads4 screens
GrimoHex4 screens

Verdict

The call

The clearest difference is price: GrainHeads at Free against GrimoHex's $12.99. GrainHeads also leads on ratings volume (14 vs 1). GrimoHex's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.7). On update cadence, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

GrainHeads is free to download; GrimoHex costs $12.99 up front. GrainHeads sells 1 one-off in-app purchase. GrimoHex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GrimoHex holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: GrainHeads has 14 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

GrainHeads ships an update every 3 days, GrimoHex every 5 days. Both last shipped on September 21, 2026.

Scorecard5 real differences · 5 level
GrainHeads versus GrimoHex: the parameters behind the verdict, then further details
ParameterGrainHeadsGrimoHex
PriceFree — better$12.99
Rating4.7 (14 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings14 — better1
Update frequencyEvery 3 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size113 MB5 MB
Age rating4+4+
DeveloperAndrei NevarJames Draper

Customer experience

GrainHeads

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%

GrimoHex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

GrainHeads

One-time1
  • Unlock GrainHeads Pro$11.99
None

GrimoHex

No in-app purchases

Questions

Is GrainHeads free?
GrainHeads is free to download, with in-app purchases available.
Is GrimoHex free?
GrimoHex costs $12.99, with no in-app purchases.
Which has better reviews, GrainHeads or GrimoHex?
GrimoHex is rated higher. GrainHeads averages 4.7 out of 5 from 14 ratings, while GrimoHex averages 5.0 from 1 ratings.
Do GrainHeads or GrimoHex have ads?
Neither GrainHeads nor GrimoHex shows ads.
Which is updated more often, GrainHeads or GrimoHex?
GrainHeads ships an update every 3 days, and GrimoHex every 5 days. Most recently, GrainHeads was updated on September 21, 2026 and GrimoHex on September 21, 2026.

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