# Coil vs Recursion by folina

The clearest difference is price: Coil at $0.99 against Recursion by folina's $2.99. Coil also leads on ratings volume (3 vs 1). On rating, ads, in-app purchases and monetization model there is nothing between them.

Coil costs $0.99 and Recursion by folina $2.99 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 Coil against 5.0 for Recursion by folina. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | Coil | Recursion by folina |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/coil-spring-reverb/id6801904963/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/recursion-by-folina/id6814180831/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Paid | Paid |
| Size | 75 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Rideout](https://appshunter.io/developer/1862462443) | [Jeremy Phillips](https://appshunter.io/developer/6777857703) |

## What reviewers say

### Coil

[App page](https://appshunter.io/ios/app/coil-spring-reverb/id6801904963)

This app simulates the physical behavior of spring reverb tanks, offering two distinct spring types and interactive "hit" features. Control mix, tone, and dwell for unique sonic textures, with an optional amp stage for added grit. It functions as a standalone app or AUv3 plugin.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


### Recursion by folina

[App page](https://appshunter.io/ios/app/recursion-by-folina/id6814180831)

This app creates evolving echoes and feedback effects by mutating sound over generations. It offers unique control over timing, memory, and signal degradation for creative sound design. Explore subtle echoes to unstable ambient spaces.

**Highlights:** Self-mutating recursive delay, Generational sound evolution, Independent control over recursion depth, Continuous drift and instability, Smearing for evolving washes, Tear events for abrupt mutations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Coil free?

Coil costs $0.99, with no in-app purchases.

### Is Recursion by folina free?

Recursion by folina costs $2.99, with no in-app purchases.

### Which has better reviews, Coil or Recursion by folina?

Coil and Recursion by folina are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Coil or Recursion by folina have ads?

Neither Coil nor Recursion by folina shows ads.

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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.*