Health Data Privacy

Rust (com.rustfitness.app) — this page explains specifically how Rust uses Health Connect / Apple Health data. Last updated: August 2026.

What Rust reads

• Steps — today's step count.
• Heart rate — your most recent reading for today.
• Active calories — today's active-energy total.

This data comes from whatever device you've connected to Health Connect or Apple Health — Garmin, Apple Watch, or any other wearable that syncs into those platforms. Rust never talks to Garmin's or Apple's servers directly.

What Rust writes

When you finish a workout in Rust, we may write an estimated active-calorie total for that session back into Health Connect / Apple Health, so it's reflected in your device's native Activity totals. This is the only data Rust writes.

How it's stored

Health data is read live from Health Connect / Apple Health each time you open the app. Rust does not upload or store your steps, heart rate, or calorie data on our servers.

Your control

Access is opt-in — Rust only requests this data after you explicitly tap "Connect" and approve the native permission screen. You can revoke access at any time in Health Connect settings (Android) or iOS Settings → Privacy & Security → Health (iOS).

Full Privacy Policy

For everything else Rust collects and how it's handled, see the full Privacy Policy.

Questions? heath.shepard@kw.com