# GrainHeads vs GrimoHex

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.

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.

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.

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

## The numbers

| Metric | GrainHeads | GrimoHex |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | [4.7 (14 ratings)](https://appshunter.io/ios/app/grainheads/id6760582834/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grimohex/id6764228537/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | **Free** | Paid |
| Size | 113 MB | 5 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Nevar](https://appshunter.io/developer/1885164055) | [James Draper](https://appshunter.io/developer/1895693909) |

## What reviewers say

### GrainHeads

[App page](https://appshunter.io/ios/app/grainheads/id6760582834)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock GrainHeads Pro | $11.99 | one-time |


### GrimoHex

[App page](https://appshunter.io/ios/app/grimohex/id6764228537)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*