My activitiesFree
This week12.4 miles3 activities
Foothills loopToday · 4.82 mi
42:16Greenbelt rideTuesday · 7.58 mi
36:08Private activity tracking
Track the miles. Keep the map.
Trailhead records runs, rides, walks, hikes, swims, and workouts without building a server-side history of where you go.
Free workout tracking. No subscription needed for your own data.
9:41●●●
Recording
Morning run
Foothills loop
4.82 miDistance42:16Time8:46Avg pace
Encrypted on this phone
01 / Why it matters
Your routine tells a story. It should be yours to keep.
A route that starts at the same address every weekday can reveal where someone lives and when they are usually away.
A fitness app does not need to keep that history on its servers to help the person train. Trailhead keeps the durable record in an encrypted vault on your phone.
02 / Free workout tracking
Everything you need to track your own progress. Free.
Your recordings, local history, summaries, editing tools, and activity data stay yours without a Trailhead subscription.
- Record runs, rides, walks, hikes, swims, and workouts with GPS
- Review distance, pace, speed, elevation, and weekly totals
- Edit your own activities
- Delete them whenever you choose
- Import or export your activity data anytime
ElevationFree
486 ftGain3,084 ftHigh2,720 ftLow
CirclePremium
NKAM+2
Shared by Anna
Saturday ridge hike · 6.3 mi
Opened on your phoneRelay copy removed
4 trusted friends, stored locally
Your durable history stays encrypted on your phone.
03 / Privacy by architecture
We couldn't sell your workout data—even if we wanted to.
Your activities, routes, and profile are encrypted with keys Trailhead doesn't possess. We can't read them, profile you with them, or sell them.
- 01
Encrypted on your phone.
Your activity vault and its key remain under your phone’s protection.
- 02
Encrypted before sharing.
Trailhead seals only the activity you approve for the recipient you choose.
- 03
Delivered, not collected.
The relay moves opaque records, then removes them after receipt, cancellation, or expiry.
Think sealed-package courier. The relay sees limited delivery information—such as timing, ciphertext size, expiry, and opaque identifiers—but it cannot open your routes or activity details.
05 / Development blog
Privacy claims should be inspectable.
We write about the engineering decisions, trade-offs, and boundaries behind Trailhead.
Browse development notesWhat we're building next
Trailhead already makes private workout tracking and encrypted sharing feel simple. Here is where we are taking it next.
06 / Feedback
What would make Trailhead useful to you?
Share a thought anonymously, or include your email if you would like a reply. We collect only what you choose to send.
Your route stays yours