# Billie Tracker vs Gliss

The clearest difference is in-app purchases: Billie Tracker at none against Gliss's 2. Billie Tracker also leads on update cadence (every 2 days vs every 5 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Gliss sells 2 one-off in-app purchases. Billie Tracker asks for nothing beyond the download.

Billie Tracker ships an update every 2 days, Gliss every 5 weeks. The most recent releases landed on October 17, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Billie Tracker | Gliss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/billie-tracker/id6792379355/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 57 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Billie Cooperative](https://appshunter.io/developer/1832623915) | [Thinkspark](https://appshunter.io/developer/1047724192) |

## What reviewers say

### 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


### Gliss

[App page](https://appshunter.io/ios/app/gliss-ribbon-synth/id6811004834)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GLISS STUDIO | $12.99 | one-time |
| GLISS PRO | $12.99 | one-time |


## Frequently asked questions

### Is Billie Tracker free?

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

### Is Gliss free?

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

### Do Billie Tracker or Gliss have ads?

Neither Billie Tracker nor Gliss shows ads.

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

Billie Tracker ships an update every 2 days, and Gliss every 5 weeks. Most recently, Billie Tracker was updated on October 17, 2026 and Gliss 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.*