# Sirens' Chor vs EvilTwin

The clearest difference is rating: EvilTwin at 5.0 against Sirens' Chor's 4.0. EvilTwin also leads on price ($2.99 vs $3.99). Sirens' Chor's advantage is iOS requirement (10.0 vs 12.0). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Sirens' Chor costs $3.99 and EvilTwin $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EvilTwin holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Sirens' Chor | EvilTwin |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/sirens-chor-synth-chorus/id1497361812/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/eviltwin/id6777857701/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | — |
| Monetization | Paid | Paid |
| Size | 11 MB | 17 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Jeremy Phillips](https://appshunter.io/developer/6777857703) |

## What reviewers say

### Sirens' Chor

[App page](https://appshunter.io/ios/app/sirens-chor-synth-chorus/id1497361812)

This experimental audio effect app analyzes input audio to generate a secondary harmonic voice using sine wave oscillators. The generated voice can be mixed with the original or played solo, creating a chorus effect. It's CPU intensive and operates within a specific frequency range.

**Highlights:** Harmonic analysis of input audio, Sine wave oscillator synthesis, Adjustable chorus effect, Second voice generation, AUV3 plugin support

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Sirens' Chor free?

Sirens' Chor costs $3.99, with no in-app purchases.

### Is EvilTwin free?

EvilTwin costs $2.99, with no in-app purchases.

### Which has better reviews, Sirens' Chor or EvilTwin?

EvilTwin is rated higher. Sirens' Chor averages 4.0 out of 5 from 2 ratings, while EvilTwin averages 5.0 from 2 ratings.

### Do Sirens' Chor or EvilTwin have ads?

Neither Sirens' Chor nor EvilTwin 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.*