# iDousyn vs Scaler EQ

The clearest difference is in-app purchases: Scaler EQ at none against iDousyn's 1. Scaler EQ also leads on rating (4.6 vs 4.2) and review sentiment (50% vs 29%). iDousyn's advantage is price ($9.99 vs $12.99) and ratings volume (159 vs 27). On update cadence, ads and device support there is nothing between them.

iDousyn costs $9.99 and Scaler EQ $12.99 up front. iDousyn sells 1 one-off in-app purchase. Scaler EQ asks for nothing beyond the download.

Scaler EQ holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: iDousyn has 159 ratings behind it against 27, 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 50% of Scaler EQ's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | iDousyn | Scaler EQ |
| --- | --- | --- |
| Price | **$9.99** | $12.99 |
| Rating | [4.2 (159 ratings)](https://appshunter.io/ios/app/idousyn/id421852860/reviews) | **[4.6 (27 ratings)](https://appshunter.io/ios/app/scaler-eq/id6499342445/reviews)** |
| Number of ratings | **159** | 27 |
| Positive reviews | 29.3% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 1.2 GB | 27 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lozada](https://appshunter.io/developer/421852863) | [Scaler Music](https://appshunter.io/developer/1603180477) |

## 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 |


### Scaler EQ

[App page](https://appshunter.io/ios/app/scaler-eq/id6499342445)

This application offers a unique approach to audio equalization by intelligently adjusting frequencies based on the detected key and scale of your music. It provides both musical enhancements and traditional EQ controls for detailed sound shaping.

**Highlights:** In-key EQ with harmonic band types, Automatic key and scale detection, Familiar EQ controls with added color, Magic Shelf for enhanced low and high frequencies, Mastering-grade limiters and meters, Dynamic band control and sidechain input, Standalone and AUv3 host compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iDousyn free?

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

### Is Scaler EQ free?

Scaler EQ costs $12.99, with no in-app purchases.

### Which has better reviews, iDousyn or Scaler EQ?

Scaler EQ is rated higher. iDousyn averages 4.2 out of 5 from 159 ratings, while Scaler EQ averages 4.6 from 27 ratings.

### Do iDousyn or Scaler EQ have ads?

Neither iDousyn nor Scaler EQ shows ads.

### Which is updated more often, iDousyn or Scaler EQ?

iDousyn ships an update every 2 months, and Scaler EQ every 2 months. Most recently, iDousyn was updated on September 30, 2026 and Scaler EQ on October 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.*