# MD_Buddy vs Billie Tracker

The clearest difference is update cadence: Billie Tracker at every 2 days against MD_Buddy's every 3 weeks. Billie Tracker also leads on iOS requirement (15.1 vs 17.0). 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.

MD_Buddy ships an update every 3 weeks, Billie Tracker every 2 days. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | MD_Buddy | 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 3 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 1 MB | 57 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [William Almond](https://appshunter.io/developer/1895490291) | [Billie Cooperative](https://appshunter.io/developer/1832623915) |

## What reviewers say

### MD_Buddy

[App page](https://appshunter.io/ios/app/md-buddy/id6763790991)

**Features:** macOS Compatibility

**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 MD_Buddy free?

MD_Buddy 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 MD_Buddy or Billie Tracker have ads?

Neither MD_Buddy nor Billie Tracker shows ads.

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

MD_Buddy ships an update every 3 weeks, and Billie Tracker every 2 days. Most recently, MD_Buddy was updated on October 25, 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.*