GoKawiilNew Android app Hamilton aggregates health data without internet access
A developer has released Hamilton, an Android app that pulls health metrics from Google's Health Connect into a single dashboard without requesting any network permissions. The app supports data from Garmin, Withings, Fitbit, Samsung Health, Oura, Whoop, Google Fit and Strava, covering metrics like steps, sleep, heart rate and body composition. It avoids double-counting overlapping data (e.g., steps from both phone and watch) by selecting a single best source per metric per day.
GoKawiil's interpretation of the reporting above, not reported fact.
The app targets a common pain point for people using multiple wearables whose data is fragmented across separate apps, offering a privacy-first alternative to cloud-based fitness dashboards. Because it has zero network permissions, it structurally cannot transmit user data, which could appeal to privacy-conscious users wary of health-data tracking by third parties. Its reliance on Android's Health Connect means its usefulness depends on how well other apps and devices sync data into that shared store.
- Hamilton is an Android app that consolidates health metrics from Health Connect into one offline dashboard.
- It requests no internet permission, so it cannot send data anywhere, unlike typical cloud-synced fitness apps.
- It avoids duplicate metric counts across devices by picking one authoritative source per metric per day.
Garmin Vivosmart 5 Fitness Tracker — Since Hamilton pulls all your metrics together through Health Connect, pairing it with a Garmin wearable gives you a steady stream of steps, heart rate, and sleep data to view in one private dashboard. It's a great way to start consolidating your health tracking without relying on multiple scattered apps.
See Garmin Vivosmart 5 Fitness Tracker on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: play.google.com, 2026-09-25
Published there as: “Show HN: Hamilton – a no-internet Android health dashboard, named after my dog”
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