Fields vs Coastline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fields
Capture, organize, and edit audio recordings on the go. This app allows for high-quality sound capture with external interfaces, imports existing files, and offers a suite of editing tools. It features automatic location tagging and flexible storage options.
- High-quality audio capture
- Import audio files
- Comprehensive editing tools
- Automatic location tagging
- iCloud and local storage options
- Pre-roll buffer
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Fields is a portable field recording app for capturing, organizing, and editing sounds in one place. Record sounds wherever you are, organize them with photos, notes, and locations, and edit your recordings directly in the app. Capture new material with the built in microphone or an external audio interface, import existing audio files, and keep everything organized in one place. Fields includes useful editing tools such as cut, copy, crop, reverse, fades, gain, normalize, filter, pitch, speed, trim silence, and noise reduction. A pre roll buffer helps you save sounds that happened just before you pressed Record, while automatic location tagging and the built in map make it easy to remember where each recording was captured. Your recordings belong to you. Fields requires no account, uses no tracking, and lets you choose between iCloud and Local Storage.
Coastline
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.
- Dual-engine audio sustainer
- Additive and granular synthesis
- Custom sample support
- Intermodulation and advanced filtering
- Extensive modulation options
- Cross-platform preset sharing
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Atmosphere machine. Texture generator. Harmonic workstation. A dual-engine audio sustainer with intermodulation, advanced filtering, support for custom samples, and more – all in the service of adding depth and character to your music. Coastline uses a combination of additive and granular synthesis to stretch sounds infinitely. It creates complementary ambience for any sound or composition. It brings a textural “je ne sais quoi” that makes your tracks stand out and feel more alive. Move as quickly as you want: slap it on a track for instant atmosphere, or use it as the recording and processing hub of entire compositions. All recordings happen immediately and automatically – set one volume threshold, and sit back. ENGINES AND EFFECTS • Tide – an additive synthesizer for reimagining sound. Control which frequencies of the input are mapped to oscillators, rebalance them to highlight harmonic or inharmonic characteristics, and introduce new frequencies with waveshaping. • Glade – a granular synthesizer that stretches sound forever with no clicks or transients. Balance the original timbre of your sound against Tide’s distillation of it. • Audio Matrix – route any channel in Coastline to intermodulate another. Create unique harmonic distortions, or load samples to introduce a completely new texture. Includes built-in field samples for naturalistic textures. • Filter – a multi-mode filter for all audio in Coastline, featuring feedback modulation, stereo spread, and independent per-channel controls. • Reverb – a downsampling reverb with a highly configurable chorus section for blending the results of Coastline and introducing another layer of texture and modulation. FEATURES • Modulation – modify any control in Coastline with multiple LFOs, sequencers, smooth random sources, and performance effects. • Presets – full preset control over every parameter in Coastline. Cross-platform preset format for sharing with friends. • Waymaker – connect to Coastline’s sibling application, Waymaker, for sequencing and additional control over the pitch of Coastline’s output. Includes 20+ presets by Peter Bark and imago meri. Also available for macOS and Windows in VST3 / AU / AAX formats from Aqeel Aadam Sound.
Screenshots
Verdict
The clearest difference is price: Fields at $7.99 against Coastline's $14.99. Fields also leads on chart position (#108 vs unranked). Coastline's advantage is review sentiment (100% vs 73%) and rating (5.0 vs 4.7). On ratings volume, update cadence, 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
Fields costs $7.99 and Coastline $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Coastline holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 13 and 12 respectively. Written reviews point the same way: 73% of Fields's written reviews are positive against 100% of Coastline's.
Fields ships an update every 6 weeks, Coastline every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | Fields | Coastline |
|---|---|---|
| Price | $7.99 — better | $14.99 |
| Rating | 4.7 (13 ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 72.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 13 — better | 12 |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #108 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | AudioThing Ltd. | Aqeel Aadam |
Customer experience
Fields
Coastline
In-app purchases
Fields
No in-app purchases
Coastline
No in-app purchases







