TrailPulse

TrailPulse pulls my hikes, walks and heart rate from my Samsung watch to a computer at home, works out whether the same climbs are getting easier, and suggests what to do next week. I can also ask Claude about it in plain English.

Why it’s different

• No subscription or monthly cost. It runs on a computer I already own, and the private network it uses (Tailscale) is free for personal use. There’s no account to sign up for and nothing to renew.
• My data stays mine. Every reading is stored on my own computer, never in a cloud service. The phone sends data only to my home computer over a private, encrypted connection, and the server can’t be reached from the internet.
• Claude sees only what it needs. When I ask a question, Claude reads my workout and heart rate summaries through a read-only connection. It never gets my GPS tracks, and nothing is shared until I ask.
• No ads, no tracking. The dashboard loads nothing from outside: no ads, no analytics, no trackers, not even web fonts or online maps.

What it does

• Syncs new workouts from the phone automatically.
• Splits each hike into the climb, the rest at the top and the descent.
• Recognizes the trail and compares every visit, so I can see whether the same climb is getting faster or easier on my heart.
• Works out a daily resting heart rate, plus training load and recovery.
• Builds a suggested week from what I’ve already done, with recovery first.

The story of why I built it, and what I learned, is in the posts below.