# Celestine Granular FX vs HeadStack

The clearest difference is update cadence: Celestine Granular FX at every 2 days against HeadStack's every 9 days. Celestine Granular FX also leads on price ($9.99 vs $12.99). HeadStack's advantage is iOS requirement (14 vs 17.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

Celestine Granular FX costs $9.99 and HeadStack $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Celestine Granular FX against 4.9 for HeadStack. Both are backed by a comparable volume of ratings — 11 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Celestine Granular FX ships an update every 2 days, HeadStack every 9 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Celestine Granular FX | HeadStack |
| --- | --- | --- |
| Price | **$9.99** | $12.99 |
| Rating | **[5.0 (11 ratings)](https://appshunter.io/ios/app/celestine-granular-fx/id6760750045/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/headstack/id6781611375/reviews) |
| Number of ratings | **11** | 7 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 9 days |
| Monetization | Paid | Paid |
| Size | 16 MB | 25 MB |
| Requires iOS | 17.0 | **14** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ian johnston](https://appshunter.io/developer/1886071653) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Celestine Granular FX

[App page](https://appshunter.io/ios/app/celestine-granular-fx/id6760750045)

Transform any audio input into evolving soundscapes, from shimmering clouds to rhythmic fragments. This app offers real-time granular processing with eight distinct engines and built-in effects for creative sound design and musical performance.

**Highlights:** Live-buffer granular processing, Eight distinct granular engines, Real-time audio transformation, Built-in wavefolding, bitcrush, and reverb effects, Tempo-synced rhythmic patterns, AUv3 compatible

**In-app purchases:** none


### HeadStack

[App page](https://appshunter.io/ios/app/headstack/id6781611375)

This app offers a virtual tape loop with 8 independently configurable playback heads for creating diverse echo effects. It captures the warmth of classic tape machines while offering modern flexibility for sound design, from vintage echoes to evolving ambient textures.

**Highlights:** Multi-head tape engine with 8 playback heads, Vintage tape character and imperfections, Independent control for each playback head, Rotating head wheel for dynamic effects, Granular harmony engine for pitch-shifted textures, Per-head modulation and creative feedback routing, Diffusion and smearing for atmospheric washes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Celestine Granular FX free?

Celestine Granular FX costs $9.99, with no in-app purchases.

### Is HeadStack free?

HeadStack costs $12.99, with no in-app purchases.

### Which has better reviews, Celestine Granular FX or HeadStack?

Celestine Granular FX is rated higher. Celestine Granular FX averages 5.0 out of 5 from 11 ratings, while HeadStack averages 4.9 from 7 ratings.

### Do Celestine Granular FX or HeadStack have ads?

Neither Celestine Granular FX nor HeadStack shows ads.

### Which is updated more often, Celestine Granular FX or HeadStack?

Celestine Granular FX ships an update every 2 days, and HeadStack every 9 days. Most recently, Celestine Granular FX was updated on October 31, 2026 and HeadStack on November 6, 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.*