# Aria vs Billie Tracker

Aria and Billie Tracker both sit at 4.9 stars, but that hides the real split: 100% of Billie Tracker's written reviews are positive against 86% of Aria's. Billie Tracker also leads on iOS requirement (15.1 vs 17). Aria's advantage is ratings volume (24 vs 5). On price, rating, update cadence and ads 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 — 4.9 for Aria against 5.0 for Billie Tracker. Both are backed by a comparable volume of ratings — 24 and 5 respectively. Written reviews are what separate them: 86% of Aria's written reviews are positive against 100% of Billie Tracker's.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Aria | Billie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (24 ratings)](https://appshunter.io/ios/app/aria-music-notation-editor/id6779437781/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/billie-tracker/id6792379355/reviews)** |
| Number of ratings | **24** | 5 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Free | Free |
| Size | 350 MB | 57 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jack Gruber](https://appshunter.io/developer/1262516427) | [Billie Cooperative](https://appshunter.io/developer/1832623915) |

## What reviewers say

### Aria

[App page](https://appshunter.io/ios/app/aria-music-notation-editor/id6779437781)

Create, edit, and play back musical scores on your iPhone or iPad. This app supports MuseScore and MusicXML files, offering intuitive touch controls for note entry and playback. Organize your library, manage parts, and export your compositions in various formats.

**Highlights:** Create and edit music scores, Play back compositions, Support for MuseScore and MusicXML, Intuitive touch controls, Manage individual parts, Export in multiple formats

**Features:** macOS Compatibility, Family Sharing, 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 Aria free?

Aria 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, Aria or Billie Tracker?

Billie Tracker is rated higher. Aria averages 4.9 out of 5 from 24 ratings, while Billie Tracker averages 5.0 from 5 ratings.

### Do Aria or Billie Tracker have ads?

Neither Aria nor Billie Tracker shows ads.

### Which is updated more often, Aria or Billie Tracker?

Aria ships an update every 2 days, and Billie Tracker every 2 days. Most recently, Aria was updated on October 6, 2026 and Billie Tracker on October 17, 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.*