# Machaon — Supplement & Symptom Tracker

> Supplement & Symptom Tracker (iPhone/iPad app by Joshua Trommel.)

- Source: https://appshunter.io/ios/app/machaon/id6785764864 (this page in markdown: same URL + `.md`)
- Developer: [Joshua Trommel](https://appshunter.io/developer/6779522177)
- Category: Health & Fitness, Medical
- Price: Free
- Age rating: 12+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-09-11
- Data updated: 2026-10-25

## What is Machaon?

Healstack is a personal substance tracker, harm reduction wiki, and health dashboard.

Log doses with a journal you can filter and search, browse a 200+ substance wiki with harm reduction data, and see your health trends in one dashboard. Your data stays in your account — no ads, no data sales.

FEATURES
- Dose logging with journal, filters, and search
- 200+ substance wiki with harm reduction information
- Health dashboard with trends over time
- Private by design

Healstack is built for harm reduction: honest information and personal tracking to help you make safer choices.

## Is Machaon safe?

Not enough ratings yet to assess Machaon.

## Is Machaon legit?

Machaon appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Machaon is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 2.4.0 — 2026-10-22

Healstack is now Machaon, named for the healer son of Asclepius. A new stethoscope icon and a cleaner look. The tab bar is the standard iOS one and no longer covers what you're reading. Your log now syncs with the web app on the same account.

### 2.3.6 — 2026-10-04

Fixed Face ID unlocking every time you open the app. It now only asks at sign-in.

### 2.3.5 — 2026-09-11

No release notes.

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## More apps by Joshua Trommel

- [Epiphany](https://appshunter.io/ios/app/epiphany/id6779522175)
- [Talli](https://appshunter.io/ios/app/talli/id6782366555)
- [Notate](https://appshunter.io/ios/app/notate/id6782604262)
- [NYC Survive](https://appshunter.io/ios/app/nyc-survive/id6782618198)
- [Lexly](https://appshunter.io/ios/app/lexly/id6783501611)
- [Thinkpond](https://appshunter.io/ios/app/thinkpond/id6785162492)

All apps by Joshua Trommel: https://appshunter.io/developer/6779522177

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-25.*