# Decibel ScorePlayer vs Scaler 3

The clearest difference is review sentiment: Scaler 3 at 50% against Decibel ScorePlayer's 0%. Scaler 3 also leads on rating (4.7 vs 4.0) and ratings volume (162 vs 2). Decibel ScorePlayer's advantage is price ($2.99 vs $19.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Decibel ScorePlayer costs $2.99 and Scaler 3 $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scaler 3 holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Scaler 3 has 162 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Decibel ScorePlayer's written reviews are positive against 50% of Scaler 3's.

Decibel ScorePlayer ships an update every 6 weeks, Scaler 3 fortnightly. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Decibel ScorePlayer | Scaler 3 |
| --- | --- | --- |
| Price | **$2.99** | $19.99 |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/decibel-scoreplayer/id622591851/reviews) | **[4.7 (162 ratings)](https://appshunter.io/ios/app/scaler-3/id6749147552/reviews)** |
| Number of ratings | 2 | **162** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 114 MB | 1.1 GB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Monash University](https://appshunter.io/developer/427380448) | [Scaler Music](https://appshunter.io/developer/1603180477) |

## What reviewers say

### Decibel ScorePlayer

[App page](https://appshunter.io/ios/app/decibel-scoreplayer/id622591851)

This app synchronizes music scores across multiple iPads for network-based scrolling. It's ideal for reading graphic notation during rehearsals and performances, offering features like adjustable scroll speed and section navigation.

**Highlights:** Network-synchronized scrolling scores, Proportional color music notation, Adjustable scroll speed, Section navigation slider, Full score or individual part view, Wi-Fi network compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Scaler 3

[App page](https://appshunter.io/ios/app/scaler-3/id6749147552)

This music theory workstation helps you discover chords, explore harmony, and build complete musical ideas. It offers a redesigned workflow, expanded creative potential, and powerful new capabilities for songwriting and music production.

**Highlights:** Discover music's key with MIDI and audio detection, Access over 1,000 chord sets, keys, and modes, Build intelligent chord progressions with automatic voice-leading, Structure full musical ideas with Scenes and Arrange Page, Transform chords into melodies, basslines, and phrases, Explore harmony with Circle of Fifths and modulation tools, Host AUv3 plugins and interoperate with desktop versions

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Decibel ScorePlayer free?

Decibel ScorePlayer costs $2.99, with no in-app purchases.

### Is Scaler 3 free?

Scaler 3 costs $19.99, with no in-app purchases.

### Which has better reviews, Decibel ScorePlayer or Scaler 3?

Scaler 3 is rated higher. Decibel ScorePlayer averages 4.0 out of 5 from 2 ratings, while Scaler 3 averages 4.7 from 162 ratings.

### Do Decibel ScorePlayer or Scaler 3 have ads?

Neither Decibel ScorePlayer nor Scaler 3 shows ads.

### Which is updated more often, Decibel ScorePlayer or Scaler 3?

Decibel ScorePlayer ships an update every 6 weeks, and Scaler 3 fortnightly. Most recently, Decibel ScorePlayer was updated on October 13, 2026 and Scaler 3 on October 15, 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.*