# 5ths Machine vs Smartleggio

The clearest difference is price: Smartleggio at Free against 5ths Machine's $1.99. Smartleggio also leads on update cadence (every 3 months vs every 24 months). 5ths Machine's advantage is rating (5.0 vs 1.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Smartleggio is free to download; 5ths Machine costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

5ths Machine holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

5ths Machine ships an update every 24 months, Smartleggio every 3 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 5ths Machine | Smartleggio |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/5ths-machine/id1582877284/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/smartleggio/id6476707166/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 18 MB | 47 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lucy Hudson](https://appshunter.io/developer/1179157812) | [Dzmitry Avadok](https://appshunter.io/developer/1727610598) |

## What reviewers say

### 5ths Machine

[App page](https://appshunter.io/ios/app/5ths-machine/id1582877284)

Explore the theoretical intricacies of key signatures with an interactive quiz. Learn about the 12-position equal temperament system and discover how to identify keys with an unusual number of sharps. Understand music theory through a unique perspective.

**Highlights:** Key signature quiz, Equal temperament system explanation, Theoretical key signature exploration, Background information on music theory, Quiz tips and strategies, Chronology of music theory concepts

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

**In-app purchases:** none


### Smartleggio

[App page](https://appshunter.io/ios/app/smartleggio/id6476707166)

This app helps musicians read and perform sheet music with features like automatic page turning and score management. It supports various file formats and offers basic editing tools, with a focus on piano players but useful for other instruments.

**Highlights:** Supports MusicXML and PDF formats, Automatic page turning via microphone or MIDI, Manual page turning with gestures or Bluetooth, Optical music recognition for PDFs, Score library management, Editing and annotation tools, Free online score library

**In-app purchases:** none


## Frequently asked questions

### Is 5ths Machine free?

5ths Machine costs $1.99, with no in-app purchases.

### Is Smartleggio free?

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

### Which has better reviews, 5ths Machine or Smartleggio?

5ths Machine is rated higher. 5ths Machine averages 5.0 out of 5 from 1 ratings, while Smartleggio averages 1.5 from 2 ratings.

### Do 5ths Machine or Smartleggio have ads?

Neither 5ths Machine nor Smartleggio shows ads.

### Which is updated more often, 5ths Machine or Smartleggio?

5ths Machine ships an update every 24 months, and Smartleggio every 3 months. Most recently, 5ths Machine was updated on October 16, 2026 and Smartleggio on October 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.*