# Grainsmith Field vs Coastline

The clearest difference is update cadence: Grainsmith Field at every 3 days against Coastline's every 3 weeks. Grainsmith Field also leads on price ($11.99 vs $14.99) and chart position (#175 vs unranked). Coastline's advantage is iOS requirement (13.0 vs 16.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

Grainsmith Field costs $11.99 and Coastline $14.99 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 Grainsmith Field against 5.0 for Coastline. Both are backed by a comparable volume of ratings — 5 and 12 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Grainsmith Field ships an update every 3 days, Coastline every 3 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Grainsmith Field | Coastline |
| --- | --- | --- |
| Price | **$11.99** | $14.99 |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/grainsmith-field/id6760624826/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/coastline-audio-effect/id6780281953/reviews) |
| Number of ratings | 5 | **12** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Paid | Paid |
| Best chart rank | **#175** | — |
| Size | 81 MB | 71 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Plastic Factory LLC](https://appshunter.io/developer/1017920807) | [Aqeel Aadam](https://appshunter.io/developer/1724235864) |

## What reviewers say

### Grainsmith Field

[App page](https://appshunter.io/ios/app/grainsmith-field/id6760624826)

**Currently charting:** #175 Top Paid · Music (US App Store)

Transform any sound into unique sonic textures using a powerful granular synthesizer. Manipulate audio with multiple playheads, record live input, and play it like an instrument via MIDI. Optimized for mobile, it offers extensive control and export options.

**Highlights:** Granular synthesis engine, Multiple independent playheads, Live audio recording and manipulation, MIDI instrument mode, AUv3 music effect, Performance recording with Live Activity, Built-in reverb and filter

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

**In-app purchases:** none


### Coastline

[App page](https://appshunter.io/ios/app/coastline-audio-effect/id6780281953)

This app generates unique audio atmospheres and textures for music production. It uses additive and granular synthesis to add depth and character to tracks, offering extensive modulation and a dual-engine sustainer.

**Highlights:** Dual-engine audio sustainer, Additive and granular synthesis, Custom sample support, Intermodulation and advanced filtering, Extensive modulation options, Cross-platform preset sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Grainsmith Field free?

Grainsmith Field costs $11.99, with no in-app purchases.

### Is Coastline free?

Coastline costs $14.99, with no in-app purchases.

### Which has better reviews, Grainsmith Field or Coastline?

Grainsmith Field and Coastline are both rated 5.0 out of 5 on the App Store, from 5 and 12 ratings respectively.

### Do Grainsmith Field or Coastline have ads?

Neither Grainsmith Field nor Coastline shows ads.

### Which is updated more often, Grainsmith Field or Coastline?

Grainsmith Field ships an update every 3 days, and Coastline every 3 weeks. Most recently, Grainsmith Field was updated on November 5, 2026 and Coastline on November 5, 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.*