# EvilTwin vs SL Tune

The clearest difference is price: EvilTwin at $3.99 against SL Tune's $7.99. EvilTwin also leads on ratings volume (3 vs 1) and iOS requirement (12.0 vs 15.0). On rating, review sentiment, ads and in-app purchases there is nothing between them.

EvilTwin costs $3.99 and SL Tune $7.99 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 EvilTwin against 5.0 for SL Tune. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | EvilTwin | SL Tune |
| --- | --- | --- |
| Price | **$3.99** | $7.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/eviltwin/id6777857701/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sl-tune/id6797349071/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 11 days |
| Monetization | Paid | Paid |
| Size | 17 MB | 38 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeremy Phillips](https://appshunter.io/developer/6777857703) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### EvilTwin

[App page](https://appshunter.io/ios/app/eviltwin/id6777857701)

This audio effect plugin adds width, motion, and unique character to your sound. It offers creative stereo enhancement and dynamic spatial animation, suitable for subtle polish or dramatic transformations. Designed for musicians and sound designers, it encourages sonic exploration with a focused interface.

**Highlights:** Creative stereo enhancement and widening, Dynamic movement and spatial animation, Subtle-to-extreme sound shaping, Performance-focused interface, AUv3 support for iPad and Mac, Works with popular music hosts

**Features:** Vision Pro support

**In-app purchases:** none


### SL Tune

[App page](https://appshunter.io/ios/app/sl-tune/id6797349071)

This app offers vocal pitch correction and tone effects for music production on iPhone and iPad. It allows precise control over vocal tuning, tone shaping, and echo, with various modes and presets for different vocal styles. The interface is adaptable for different screen orientations and host applications.

**Highlights:** Vocal pitch correction, Tone shaping effects, Adjustable echo, Key and scale selection, Natural and hard correction modes, Customizable presets, Resizable interface

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

**In-app purchases:** none


## Frequently asked questions

### Is EvilTwin free?

EvilTwin costs $3.99, with no in-app purchases.

### Is SL Tune free?

SL Tune costs $7.99, with no in-app purchases.

### Which has better reviews, EvilTwin or SL Tune?

EvilTwin and SL Tune are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do EvilTwin or SL Tune have ads?

Neither EvilTwin nor SL Tune shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*