No Cloud · No Account · No Audience

Run Offline. Keep Your Data.

Stray is a tracker that never phones home. Run, walk, hike or ride — every route and every split stays on your device. No leaderboard. No followers. Just the road and the outing you chose.

A runner in a yellow hooded jacket sprints down a neon-lit street at night. Behind them, a cyclist drawn in flat cyan and a hiker with a pole in flat magenta each stand in their own pool of lamplight.

How it works

One Tap. Then Go.

  1. Pick Two Things

    What you're doing — run, walk, hike or ride — and what it's judged on: a duration, a distance, or nothing at all. No feed to scroll.

  2. Run Dark

    GPS on, radio off. Distance fills the screen, with pace and time underneath — readable mid-stride, in the rain.

  3. Keep It

    It lands in your history on this phone. Export a GPX whenever you want. Delete anything in one tap.

Stray's target picker: duration 45 min, distance 8 km, or no target at all.
Stray's live screen: 5.20 kilometres into an 8 kilometre target with 2.8 to go, pace 6:22, elapsed 33:06, with stop and pause controls.
Stray's summary: 12.69 kilometres in 1:19:40 at 6:17 per kilometre, with the route drawn on a map and per-kilometre splits below.

The Deal

We Don't Want Your Routes.

Most fitness apps are data businesses wearing shorts. Stray isn't. There is no server to send anything to.

Account Required
None
Third-party SDKs
Zero
Data Leaving Phone
Only if You Export
Price
Free. No Ads.

Go Get Lost.

Open beta on iOS and Android. Works with the radio off.

Also from Grunt

Loud

A local music player. No cloud. No ads. No account.

Point it at a folder and it plays it — your own MP3s and FLACs, with their real tags and covers. Same deal as Stray: nothing phoning home.

Visit Loud