# Orbit vs Sine

The clearest difference is in-app purchases: Orbit at none against Sine's 3. Sine's advantage is chart position (#148 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sine sells 3 in-app purchases, starting at $1.99 per month. Orbit asks for nothing beyond the download.

## The numbers

| Metric | Orbit | Sine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (393 ratings)](https://appshunter.io/ios/app/sine-ear-training-games/id6809608874/reviews)** |
| Number of ratings | — | **393** |
| Positive reviews | — | 93.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Monetization | — | Freemium |
| Best chart rank | — | **#148** |
| Size | 54 MB | 123 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Hassaan Nasim](https://appshunter.io/developer/6808852863) | [Ethan Liao](https://appshunter.io/developer/6809608877) |

## What reviewers say

### Orbit

[App page](https://appshunter.io/ios/app/orbit-study-partners/id6808852861)

**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:** #148 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Encore Monthly | $1.99 | per month |
| Encore Yearly | $14.99 | per year |
| Encore Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Orbit free?

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

### Is Sine free?

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

### Do Orbit or Sine have ads?

Neither Orbit 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.*