Privacy-first fitness tracking
GPS routes, pace, heart rate, splits, training plans, a real social feed — everything you expect from a serious fitness app, and yes, we keep your training history like any tracker does. The one thing we never hold onto is where you actually were.
The same run, two ways
Your route is rotated by a key only your phone holds, then transposed onto another city's streets. You see your real run. Everyone else sees a cover route somewhere you've never been.
Your actual route, unlocked by your recovery phrase on your device.
A cover route on real streets in a different city — same distance and pace, no location.
How the privacy works
A per-user key on your phone rotates every coordinate before upload. The key is never transmitted.
The Cover Location Engine lays your rotated track onto another city's roads. Distance and pace are preserved; the location is gone.
A 12-word recovery phrase is the only way to read your real routes. Save it once; lose it and your history stays unreadable — by anyone.
No backdoor, by design
Specter derives your encryption key from twelve words shown to you once. We never store it. That's the whole guarantee: even we can't turn your data back into a location — so if a server were ever breached, there's no route in it anyone could put on a map.
Not a privacy toy
Live GPS tracking, pace and splits, heart rate from your strap or Apple Watch, elevation, power, cadence. Run, ride, swim, hike, walk — recorded standalone on Apple Watch and Wear OS, with HRV, resting heart rate, and sleep from Apple Health or Health Connect.
Glanceable
Live Activities keep your time, distance, and pace front and center — on the lock screen and in the Dynamic Island — so you never unlock mid-stride.
Private by default, social by design
Compete on runs, rides, swims and more. Everyone shows up under a randomized alias, racing on cover routes — so the feed, kudos, comments, and leaderboards stay lively without ever exposing a real location.
Watch-native
Record a full activity standalone on Apple Watch and Wear OS — start, structured plans, live metrics, even leaderboards, right on your wrist. The same on-device privacy comes along: your real route never leaves the watch.
Everything inside
A real feed, kudos, comments, and following — all on cover routes, never your real location.
Join clubs and compete on challenge and segment leaderboards, all under a randomized alias.
Structured plans and goals to actually move the needle, not just log miles.
Record standalone on Apple Watch and Wear OS — your phone can stay home.
HRV, resting HR, and sleep from Apple Health and Health Connect, on your opt-in.
Your data is yours: export it anytime, or delete your account and have routes crypto-scrubbed.
Being straight about it
It's a fitness tracker — your distances, paces, heart rate and history live in your account, because that's what makes training, history, and leaderboards work. We will never sell, rent, or share that data with a third party, and there are no analytics or advertising SDKs in the app to leak it. What's not in there at all is a route anyone could put on a map. Full detail in the privacy policy.