# Coil vs ChoirXML

The clearest difference is price: ChoirXML at Free against Coil's $0.99. Coil's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.0). On ads and in-app purchases there is nothing between them.

ChoirXML is free to download; Coil costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Coil | ChoirXML |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coil-spring-reverb/id6801904963/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | Paid | — |
| Size | 27 MB | 7 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Rideout](https://appshunter.io/developer/1862462443) | [Jonathan Froese](https://appshunter.io/developer/6813776185) |

## 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


### ChoirXML

[App page](https://appshunter.io/ios/app/choirxml/id6820900693)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Coil free?

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

### Is ChoirXML free?

ChoirXML is free to download, with no in-app purchases.

### Do Coil or ChoirXML have ads?

Neither Coil nor ChoirXML 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.*