# Sight Reading Factory vs PolyRhythmic Metronome

The clearest difference is in-app purchases: Sight Reading Factory at none against PolyRhythmic Metronome's 2. Sight Reading Factory also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PolyRhythmic Metronome sells 2 in-app purchases, starting at $2.99 per month. Sight Reading Factory asks for nothing beyond the download.

Sight Reading Factory ships an update every 2 months, PolyRhythmic Metronome every 3 months. The most recent releases landed on October 21, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sight Reading Factory | PolyRhythmic Metronome |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (391 ratings)](https://appshunter.io/ios/app/sight-reading-factory/id1046058520/reviews)** | — |
| Number of ratings | **391** | — |
| Positive reviews | 32.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 29 MB | 85 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GraceNotes LLC](https://appshunter.io/developer/1046058519) | [Romeu Beato](https://appshunter.io/developer/1801192254) |

## What reviewers say

### Sight Reading Factory

[App page](https://appshunter.io/ios/app/sight-reading-factory/id1046058520)

Instantly compose unlimited sight-reading music exercises for any instrument. Customize difficulty and levels to suit musicians of all ages and abilities. Includes classroom management for educators to assign and assess student performance.

**Highlights:** Unlimited sight-reading material, On-demand music composition, Customizable difficulty levels, Supports all instruments, Classroom management, Assignment creation and grading

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Great for sight reading practice
- 👍 Customizable options
- 🚀 Generates new melodies on demand
- 👍 Helpful for improving sight reading skills
- 👍 Good for teachers to use with students

**What reviewers complain about**

- 🐛 Login/account creation issues
- 💰 Expensive subscription required
- 🔍 Limited features in the app compared to website
- 🐛 Viewing/zooming issues on larger devices
- 🐛 Metronome issues and inconsistencies

**Reported bugs**

- App crashes or has rendering errors on older iOS versions
- Unable to create account within the app
- Inconsistent behavior when selecting certain options

**Requested features**

- Add more advanced sight reading options (e.g. modulations, accidentals)
- Implement wrong note detection and feedback
- Allow recording and reviewing of practice sessions
- Add more instrument options beyond piano


### PolyRhythmic Metronome

[App page](https://appshunter.io/ios/app/polyrhythmic-metronome/id6760353853)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Polyrhythmic Metronome Pro | $2.99 | per month |
| Polyrhythmic Metronome - Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is Sight Reading Factory free?

Sight Reading Factory is free to download, with no in-app purchases.

### Is PolyRhythmic Metronome free?

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

### Do Sight Reading Factory or PolyRhythmic Metronome have ads?

Neither Sight Reading Factory nor PolyRhythmic Metronome shows ads.

### Which is updated more often, Sight Reading Factory or PolyRhythmic Metronome?

Sight Reading Factory ships an update every 2 months, and PolyRhythmic Metronome every 3 months. Most recently, Sight Reading Factory was updated on October 21, 2026 and PolyRhythmic Metronome on October 31, 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.*