# Coil - Spring Reverb — Spring reverb that fights back

> Physically simulated spring reverb with interactive 'hit' and amp stage. (iPhone/iPad app by Joshua Rideout.)

- Source: https://appshunter.io/ios/app/coil-spring-reverb/id6801904963 (this page in markdown: same URL + `.md`)
- Developer: [Joshua Rideout](https://appshunter.io/developer/1862462443)
- Category: Music, Utilities
- Price: $0.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 27 MB
- Released: 2026-09-03
- Data updated: 2026-09-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/coil-spring-reverb/id6801904963/reviews.md

## What is Coil?

Coil is a spring reverb built from the ground up around the thing that makes real spring tanks so good: they're physical. The springs stretch, resonate, build up energy, and get hit, and when you kick the tank, you hear it.

There are no impulse responses inside Coil. The springs themselves are simulated while you play. Change the physics and you change the sound.

TWO TANKS, TWO PERSONALITIES
• LONG — big, slow, heavy springs. More depth, more wobble, more of that surf-era drip.
• SHORT — tighter springs with a brighter, immediate response. Less wash, more snap.

KRAANG!
Hit the pedal and the springs respond with a burst of metallic chaos. Because they're physically simulated, what comes back depends on where the springs are in their motion when you land. Try it while the reverb is already ringing. It's ridiculous. It's also extremely useful.

THREE KNOBS, NO MYSTERY
• MIX — how much spring you want.
• TONE — how fast the top end dies in the steel. Not an EQ: you're changing the behaviour of the spring itself.
• DWELL — how long the springs keep moving.

AND THE JEWEL
Tap it and the whole thing goes through a measured amp stage — presence, grit and all. Nobody will tell you this is there.

WORKS EVERYWHERE
• AUv3 for GarageBand, Logic Pro, AUM and any Audio Unit host
• Standalone app — plug in and play, no DAW needed
• MIDI learn on every control
• One purchase: Mac, iPad and iPhone

No giant metal tank. No springs to break. No road case.
A spring you don't have to haul around.

## Key features

- Physically simulated springs
- Two distinct spring tank personalities (Long & Short)
- Interactive 'hit' function for metallic chaos
- Adjustable Mix, Tone, and Dwell controls
- Integrated amp stage with presence and grit
- AUv3 plugin and standalone app support
- MIDI learn for all controls


## Frequently asked questions about Coil

### What is Coil - Spring Reverb?

Coil is an audio effect app that simulates the physical behavior of spring reverb tanks. It offers two distinct spring types, an interactive 'hit' function, and an optional amp stage for added sonic character. It can be used as a standalone app or an AUv3 plugin.

### How much does Coil - Spring Reverb cost?

Coil - Spring Reverb is a paid app, available for a one-time purchase of $0.99. This single purchase unlocks the app on Mac, iPad, and iPhone.

### Does Coil - Spring Reverb have ads?

No, Coil - Spring Reverb does not contain advertisements. It is a paid application with no ads or in-app purchases.

### What devices does Coil - Spring Reverb support?

Coil - Spring Reverb is compatible with Mac, iPhone, and iPad devices. It also supports iPods.

### Can I use Coil - Spring Reverb with GarageBand or Logic Pro?

Yes, Coil - Spring Reverb supports AUv3, making it fully compatible with GarageBand, Logic Pro, AUM, and any other Audio Unit host application.

### What are the main controls in Coil - Spring Reverb?

The primary controls are MIX, which adjusts the amount of spring reverb; TONE, which alters the spring's top-end decay behavior; and DWELL, which controls how long the springs continue to resonate.

### How often is Coil - Spring Reverb updated?

The app was last updated on September 21, 2026, indicating recent development activity. Its initial release date was September 3, 2026.

### What is the age rating for Coil - Spring Reverb?

Coil - Spring Reverb has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 1 release)

### 1.0 — 2026-09-21

No release notes.

## More apps by Joshua Rideout

- [ReadLeft](https://appshunter.io/ios/app/readleft/id6757007497)
- [VividCut](https://appshunter.io/ios/app/vividcut/id6759135844)
- [Serphonica](https://appshunter.io/ios/app/serphonica/id6759585139)
- [Ember - Overdrive Distortion](https://appshunter.io/ios/app/ember-overdrive-distortion/id6788960282)
- [Slab - Plate Reverb](https://appshunter.io/ios/app/slab-plate-reverb/id6804340099)

All apps by Joshua Rideout: https://appshunter.io/developer/1862462443

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-25.*