# Sirens' Chor vs milliVerb

The clearest difference is price: milliVerb at Free against Sirens' Chor's $3.99. milliVerb also leads on rating (5.0 vs 4.0) and update cadence (every 5 days vs every 39 months). Sirens' Chor's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 16.0). On review sentiment, ratings volume, ads and device support there is nothing between them.

milliVerb is free to download; Sirens' Chor costs $3.99 up front. milliVerb sells 1 one-off in-app purchase. Sirens' Chor asks for nothing beyond the download.

milliVerb holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Sirens' Chor ships an update every 39 months, milliVerb every 5 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Sirens' Chor | milliVerb |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/sirens-chor-synth-chorus/id1497361812/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/milliverb/id6808466445/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 5 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 11 MB | 5 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Angelo Milli](https://appshunter.io/developer/1674980704) |

## 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


### milliVerb

[App page](https://appshunter.io/ios/app/milliverb/id6808466445)

Transform your iPhone or iPad into a professional reverb processor for live audio. Shape rich algorithmic spaces in real-time, visualize your reverb with a spectral display, and control parameters with MIDI. Ideal for musicians and vocalists seeking immersive sound.

**Highlights:** Real-time reverb shaping, Spectral display visualization, MIDI control and tempo sync, Live audio processing, Feedback cancellation, Customizable presets

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| milliVerb Full | $7.99 | one-time |


## Frequently asked questions

### Is Sirens' Chor free?

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

### Is milliVerb free?

milliVerb is free to download, with in-app purchases available.

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

milliVerb is rated higher. Sirens' Chor averages 4.0 out of 5 from 2 ratings, while milliVerb averages 5.0 from 1 ratings.

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

Neither Sirens' Chor nor milliVerb shows ads.

### Which is updated more often, Sirens' Chor or milliVerb?

Sirens' Chor ships an update every 39 months, and milliVerb every 5 days. Most recently, Sirens' Chor was updated on October 6, 2026 and milliVerb on October 8, 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.*