# TunerBox vs Coil

The clearest difference is price: TunerBox at Free against Coil's $0.99. TunerBox also leads on update cadence (every 4 days vs every 8 days). Coil's advantage is device support (4 vs 2) and ratings volume (3 vs 1). On rating, ads, in-app purchases and monetization model there is nothing between them.

TunerBox is free to download; Coil costs $0.99 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 TunerBox against 5.0 for Coil. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

TunerBox ships an update every 4 days, Coil every 8 days. The most recent releases landed on October 30, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | TunerBox | Coil |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tunerbox/id6753839036/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/coil-spring-reverb/id6801904963/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 days |
| Monetization | Paid | Paid |
| Size | 2 MB | 75 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Richard Stokes](https://appshunter.io/developer/1684839871) | [Joshua Rideout](https://appshunter.io/developer/1862462443) |

## What reviewers say

### TunerBox

[App page](https://appshunter.io/ios/app/tunerbox/id6753839036)

This app provides a straightforward and efficient way to tune stringed instruments like guitars, basses, and ukuleles. It offers automatic detection of common tunings and a manual mode for precise adjustments, loading instantly for immediate use.

**Highlights:** Instant loading tuner, Supports common guitar tunings, Manual tuning mode, Works with bass and ukulele, Simple and effective interface

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

**In-app purchases:** none


### Coil

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

This app simulates the sound and behavior of a spring reverb unit, offering two distinct tanks and engines for varied sonic textures. It allows for interactive "kicking" of the springs via tap or MIDI input, with adjustable decay, tone, and mix controls.

**Highlights:** Two distinct spring reverb tanks (Long/Short), Two reverb engines (physical modeling/vintage), Interactive "kick" feature via tap or MIDI, Adjustable Dwell, Tone, and Mix controls, Optional built-in amp stage, AUv3 and standalone app support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TunerBox free?

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

### Is Coil free?

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

### Which has better reviews, TunerBox or Coil?

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

### Do TunerBox or Coil have ads?

Neither TunerBox nor Coil shows ads.

### Which is updated more often, TunerBox or Coil?

TunerBox ships an update every 4 days, and Coil every 8 days. Most recently, TunerBox was updated on October 30, 2026 and Coil on November 2, 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.*