# iDousyn vs Spiral Chorus

The clearest difference is review sentiment: Spiral Chorus at 89% against iDousyn's 29%. Spiral Chorus also leads on price (Free vs $9.99) and rating (5.0 vs 4.2). iDousyn's advantage is update cadence (every 2 months vs every 15 months) and ratings volume (159 vs 15). On ads, in-app purchases and device support there is nothing between them.

Spiral Chorus is free to download; iDousyn costs $9.99 up front. iDousyn sells 1 one-off in-app purchase and Spiral Chorus sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Spiral Chorus holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: iDousyn has 159 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 29% of iDousyn's written reviews are positive against 89% of Spiral Chorus's.

iDousyn ships an update every 2 months, Spiral Chorus every 15 months. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | iDousyn | Spiral Chorus |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.2 (159 ratings)](https://appshunter.io/ios/app/idousyn/id421852860/reviews) | **[5.0 (15 ratings)](https://appshunter.io/ios/app/spiral-chorus/id6449840927/reviews)** |
| Number of ratings | **159** | 15 |
| Positive reviews | 29.3% of reviews | **88.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.2 GB | 12 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lozada](https://appshunter.io/developer/421852863) | [Tom Power](https://appshunter.io/developer/1629402664) |

## What reviewers say

### iDousyn

[App page](https://appshunter.io/ios/app/idousyn/id421852860)

This app transforms your device into a professional music production tool. It features a sample-based synthesizer with dual-layer sampling, advanced filters, and a professional effects chain. Create immersive sounds and build captivating tracks with an intuitive interface and extensive sound library.

**Highlights:** Dual-layer sampling, Advanced filters and EQ, Professional effects chain, Creative chord pads, MIDI mastery, Expansive sound library

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | Free | one-time |


### Spiral Chorus

[App page](https://appshunter.io/ios/app/spiral-chorus/id6449840927)

This music effect plugin offers an analog-modeled LCR chorus with touch-friendly controls and immersive 3D visuals. It seamlessly integrates into DAWs for iOS, adding depth and texture to various music productions.

**Highlights:** Analog Modeled LCR Chorus, Touch-Friendly Controls, Immersive 3D Visuals, Versatile Music Application, Optimized for iOS, Seamless DAW Integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is iDousyn free?

iDousyn costs $9.99, and also offers in-app purchases.

### Is Spiral Chorus free?

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

### Which has better reviews, iDousyn or Spiral Chorus?

Spiral Chorus is rated higher. iDousyn averages 4.2 out of 5 from 159 ratings, while Spiral Chorus averages 5.0 from 15 ratings.

### Do iDousyn or Spiral Chorus have ads?

Neither iDousyn nor Spiral Chorus shows ads.

### Which is updated more often, iDousyn or Spiral Chorus?

iDousyn ships an update every 2 months, and Spiral Chorus every 15 months. Most recently, iDousyn was updated on September 26, 2026 and Spiral Chorus on September 10, 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.*