# DoomLoop vs Billie Tracker

The clearest difference is update cadence: Billie Tracker at every 2 days against DoomLoop's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

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

DoomLoop ships an update every 6 days, Billie Tracker every 2 days. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | DoomLoop | Billie Tracker |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 2 days** |
| Monetization | — | Free |
| Size | 4 MB | 56 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ryan Ebner](https://appshunter.io/developer/1896319552) | [Billie Cooperative](https://appshunter.io/developer/1832623915) |

## What reviewers say

### DoomLoop

[App page](https://appshunter.io/ios/app/doomloop/id6766733624)

**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 DoomLoop free?

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

### Is Billie Tracker free?

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

### Do DoomLoop or Billie Tracker have ads?

Neither DoomLoop nor Billie Tracker shows ads.

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

DoomLoop ships an update every 6 days, and Billie Tracker every 2 days. Most recently, DoomLoop was updated on October 3, 2026 and Billie Tracker on October 1, 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.*