# Quarry vs Sine

The clearest difference is in-app purchases: Quarry at none against Sine's 2. Sine's advantage is chart position (#188 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sine sells 2 in-app purchases, starting at $8.99 per month. Quarry asks for nothing beyond the download.

## The numbers

| Metric | Quarry | Sine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (17 ratings)](https://appshunter.io/ios/app/sine-ear-training-games/id6809608874/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | — | Freemium |
| Best chart rank | — | **#188** |
| Size | 127 MB | 84 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mayank Gulaty](https://appshunter.io/developer/1850701548) | [Ethan Liao](https://appshunter.io/developer/6809608877) |

## What reviewers say

### Quarry

[App page](https://appshunter.io/ios/app/quarry-sql-and-python-prep/id6785931623)

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

**In-app purchases:** none


### Sine

[App page](https://appshunter.io/ios/app/sine-ear-training-games/id6809608874)

**Currently charting:** #188 Top Free · Education (US App Store)

Develop your ear for music with interactive games and personalized practice. Learn to identify notes and chords through engaging exercises designed to improve your musical perception. Track your progress and earn badges as you master your auditory skills.

**Highlights:** Note and chord identification, Progressive difficulty levels, Interactive ear training games, Personalized practice sessions, Progress tracking and statistics, Badge collection system

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Encore Monthly | $8.99 | per month |
| Encore Yearly | $74.99 | per year |


## Frequently asked questions

### Is Quarry free?

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

### Is Sine free?

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

### Do Quarry or Sine have ads?

Neither Quarry nor Sine shows ads.

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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.*