# Calypso Score vs Effectrix

The clearest difference is rating: Effectrix at 4.7 against Calypso Score's 4.2. Effectrix also leads on ratings volume (97 vs 22). Calypso Score's advantage is monetization model (free with in-app purchases vs paid) and review sentiment (77% vs 67%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Calypso Score sells 4 in-app purchases, starting at $3.99 per 3 months and Effectrix sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Effectrix holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 22 and 97 respectively. Written reviews complicate that: 77% of Calypso Score's written reviews are positive against 67% of Effectrix's, so the app with the better star average is not the one people write more warmly about.

Calypso Score ships an update every 3 months, Effectrix every 4 months. The most recent releases landed on July 6, 2026 and August 7, 2026 respectively.

## The numbers

| Metric | Calypso Score | Effectrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (22 ratings)](https://appshunter.io/ios/app/calypso-score-sheet-music/id480475970/reviews) | **[4.7 (97 ratings)](https://appshunter.io/ios/app/effectrix/id681772221/reviews)** |
| Number of ratings | 22 | **97** |
| Positive reviews | **77.3% of reviews** | 67.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 191 MB | 52 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [iMobilTec](https://appshunter.io/developer/480475973) | [Sugar Bytes GmbH](https://appshunter.io/developer/614418826) |

## What reviewers say

### Calypso Score

[App page](https://appshunter.io/ios/app/calypso-score-sheet-music/id480475970)

Manage and annotate your digital sheet music library with this iPad app. Features include PDF import, scanning, organization into custom songbooks, and quick song searching with pre-built indexes for popular fakebooks. Effortlessly turn pages and practice with synchronized audio tracks.

**Highlights:** Import and scan sheet music PDFs, Organize music into custom songbooks, Annotate with text, symbols, and drawings, Quick song search with fakebook indexes, Automatic and manual page turning, Attach and synchronize audio tracks

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $3.99 | per 3 months |
| Full Version | $11.99 | per year |
| Free Trial | Free | one-time |
| Full Version | $22.99 | one-time |


### Effectrix

[App page](https://appshunter.io/ios/app/effectrix/id681772221)

This professional multi-effect sequencer for iPad allows users to create unique sound patterns and loop collages by scattering 14 intelligent effects across a sequencer matrix. It offers a playful workflow, refined algorithms, and a wide spectrum of effects for outstanding results.

**Highlights:** Multi-effect sequencer matrix, 14 intelligent effects, Creative sound pattern generation, Loop collage creation, Audio Unit v3 integration, Full MIDI support, Ableton Link synchronization

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Effectrix Full Version | $24.99 | one-time |


## Frequently asked questions

### Is Calypso Score free?

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

### Is Effectrix free?

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

### Which has better reviews, Calypso Score or Effectrix?

Effectrix is rated higher. Calypso Score averages 4.2 out of 5 from 22 ratings, while Effectrix averages 4.7 from 97 ratings.

### Do Calypso Score or Effectrix have ads?

Neither Calypso Score nor Effectrix shows ads.

### Which is updated more often, Calypso Score or Effectrix?

Calypso Score ships an update every 3 months, and Effectrix every 4 months. Most recently, Calypso Score was updated on July 6, 2026 and Effectrix on August 7, 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.*