# ScaleSpin vs Billie Tracker

The clearest difference is monetization model: Billie Tracker at free against ScaleSpin's paid. Billie Tracker also leads on ratings volume (5 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for ScaleSpin against 5.0 for Billie Tracker. That said, the two scores are not equally well evidenced: Billie Tracker has 5 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | ScaleSpin | Billie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/scalespin/id6778778091/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/billie-tracker/id6792379355/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | Paid | **Free** |
| Size | 38 MB | 57 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shuo Yang](https://appshunter.io/developer/6778778093) | [Billie Cooperative](https://appshunter.io/developer/1832623915) |

## What reviewers say

### ScaleSpin

[App page](https://appshunter.io/ios/app/scalespin/id6778778091)

This app simplifies daily scale practice for musicians by randomly selecting scales. It aims to make practicing more engaging and enjoyable, inspired by dedicated music teachers.

**Highlights:** Random scale selection, Simplified practice routine, Engaging practice experience, Dedicated to music teachers

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

**In-app purchases:** none


### Billie Tracker

[App page](https://appshunter.io/ios/app/billie-tracker/id6792379355)

Create music with a powerful groovebox featuring a step sequencer, synthesizers, and a sampler. Arrange patterns into songs, shape unique sounds, and export your finished tracks. Designed for intuitive music production on mobile devices.

**Highlights:** Step sequencer for notes and instruments, Shapeable synth instruments, In-app sampler for recording sounds, Mixer with per-track controls, Song arrangement and export options, Hardware controller support

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

**In-app purchases:** none


## Frequently asked questions

### Is ScaleSpin free?

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

### Is Billie Tracker free?

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

### Which has better reviews, ScaleSpin or Billie Tracker?

ScaleSpin and Billie Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.

### Do ScaleSpin or Billie Tracker have ads?

Neither ScaleSpin nor Billie Tracker 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.*