Health & Fitness · Open source
Heartwood
Eason Huang
A private, read-only Material You viewer for your Health Connect data.
Opens the official F-Droid page
About Heartwood
Heartwood is a private, open-source window into the health and fitness data stored
in Android's Health Connect. It only ever reads, nothing you see leaves your device,
and there are no accounts, ads, or trackers.
Features:
* Today dashboard, Material You cards for steps, heart rate, sleep, energy, distance,
exercise, SpO2, weight, blood pressure and more, each with an at-a-glance sparkline.
Long-press to rearrange or hide cards right on the grid.
* Detail views, tap any metric for a full chart, statistics and recent records.
* Weekly summary, daily averages measured against goals you set, with progress rings,
goal lines and week-over-week trends. Tap a bar to see that day's value.
* Home-screen widgets, your key numbers, themed to match your wallpaper.
* Export, save your accessible data to a CSV or JSON file at any time.
Heartwood reads data through Health Connect, so it works alongside whatever apps and
wearables already write there. You stay in control of exactly which data types it can
read, and can change or revoke access at any time from Health Connect.
What's new in 1.1.0
- Now runs on Android 9 and 10 - Edit the Today dashboard in place: long-press to rearrange or hide cards - Goal lines on Summary charts; tap a bar to see that day's value - Exports now include all records, not just the first 1,000 - Sleep is dated by the day you wake up - Dates and times follow your locale and 12/24-hour setting - Per-app language support, ready for translations - Removed a leftover network-state permission
How to install Heartwood
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Heartwood from your app drawer.





