# iScrudenizer vs PianoTrax

The clearest difference is review sentiment: PianoTrax at 98% against iScrudenizer's 0%. PianoTrax also leads on rating (4.7 vs 1.6) and update cadence (every 3 months vs every 70 months). iScrudenizer's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. PianoTrax sells 4 in-app purchases, starting at $9.99 per month. iScrudenizer asks for nothing beyond the download.

PianoTrax holds the better App Store score, 4.7 against 1.6. That said, the two scores are not equally well evidenced: PianoTrax has 179 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of iScrudenizer's written reviews are positive against 98% of PianoTrax's.

iScrudenizer ships an update every 70 months, PianoTrax every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | iScrudenizer | PianoTrax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (5 ratings)](https://appshunter.io/ios/app/iscrudenizer/id365973886/reviews) | **[4.7 (179 ratings)](https://appshunter.io/ios/app/pianotrax/id1356719080/reviews)** |
| Number of ratings | 5 | **179** |
| Positive reviews | 0.0% of reviews | **97.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 70 months | **Every 3 months** |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 12 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Remmy Demmy Productions](https://appshunter.io/developer/365973889) | [PianoTrax](https://appshunter.io/developer/1356719079) |

## What reviewers say

### iScrudenizer

[App page](https://appshunter.io/ios/app/iscrudenizer/id365973886)

This client application connects to a custom MIDI sequencing server for kinetic art installations. It allows users to control playback of pre-programmed compositions, including play, pause, and stop functions. The app requires a specific server setup from Remmy Demmy Productions.

**Highlights:** Connects to custom MIDI sequencing server, Controls playback of compositions, Play, pause, and stop functions, Requires specific server setup, Client for kinetic art installations

**Features:** macOS Compatibility

**In-app purchases:** none


### PianoTrax

[App page](https://appshunter.io/ios/app/pianotrax/id1356719080)

Access a vast library of piano tracks for singers, students, and educators. Customize key and tempo, create playlists, and download MP3s. Ideal for rehearsals, auditions, and performances.

**Highlights:** Purchase and download individual tracks, Change key and tempo, Browse by category or search, Create multiple playlists, Melody and piano versions available, Custom recordings available

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PianoTrax One Month Unlimited | $9.99 | per month |
| PianoTrax one Year Unlimited | $99.99 | per year |
| Pianotrax Partial Track | $3.99 | one-time |
| PianoTrax Full Track | $5.99 | one-time |

**What reviewers like**

- 🚀 Great app for auditions
- 👍 Helpful for rehearsals and practice
- 🎶 Vast library of songs
- 🔧 Ability to change key and tempo
- 💻 Convenient and easy to use app

**What reviewers complain about**

- 🔍 Outdated interface design
- 🔢 Limited preview length
- 🐛 Occasional crashes or bugs

**Reported bugs**

- Search function crashes the app
- Incompatibility issues with some devices

**Requested features**

- Download tracks with adjusted tempo and key
- Integrate with other music apps
- Add more song genres beyond musical theatre


## Frequently asked questions

### Is iScrudenizer free?

iScrudenizer is free to download, with no in-app purchases.

### Is PianoTrax free?

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

### Which has better reviews, iScrudenizer or PianoTrax?

PianoTrax is rated higher. iScrudenizer averages 1.6 out of 5 from 5 ratings, while PianoTrax averages 4.7 from 179 ratings.

### Do iScrudenizer or PianoTrax have ads?

Neither iScrudenizer nor PianoTrax shows ads.

### Which is updated more often, iScrudenizer or PianoTrax?

iScrudenizer ships an update every 70 months, and PianoTrax every 3 months. Most recently, iScrudenizer was updated on November 1, 2026 and PianoTrax on November 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.*