Offline nav · On-device AI coach

Follow the line.
Run anywhere.

Plan routes, follow them offline, and let Coach Pulse — your on-device AI running coach — tune every session to how your body actually feels. Nothing leaves your phone.

Download on theApp Store See how it works
Works fully offline No account needed iPhone · Apple Watch
100%
On-device AI
0
Signal needed
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Import & create
⌚︎+📱
Watch & phone
Everything for the route

Built to keep your eyes on the trail, not the screen.

A quick glance tells you where to head — running, hiking or cycling. The rest stays out of your way.

Offline navigation

Follow a high-contrast green line that shows exactly where to head — no phone, no connection required.

Build & import routes

Plan a route right in the app, or import GPX files from any route-creation tool. Sync seamlessly to your watch.

Drop bookmarks on the go

Mark water points, viewpoints or breaks straight from your wrist, and tag what each one is for.

Elevation profile

See the steep hills coming — so you can pace it right.

Podcasts in your ears

Search, queue and play episodes for the road. They transfer from iPhone to Watch for offline listening.

Tuned for all-day battery

Negligible battery impact on long sessions, and it stays readable even with the always-on display.

Coach Pulse daily report
Meet Coach Pulse

An AI coach that listens to your body.

Coach Pulse reads your VO₂ Max, heart rate, HRV, sleep and recovery, then tells you what to actually do today — celebrate the effort, or take the rest. All processed on your device.

Recovery-aware recommendations
Personalized guidance from your real readiness, not a generic plan.
Time-of-day aware
It won't tell you to head out for a run when it's far too late.
Smart signals, never nagging
Surfaces what matters and never repeats the same warning twice.
On the wrist

A glance is all you need.

High-contrast navigation that stays readable even on the always-on display. Know where to head without breaking your stride.

Digital Crown zoom
Zoom the map in and out with a turn of the crown.
Off-route alerts
A distinct vibration and sound when you drift off the line.
Standalone or paired
Use it alone or alongside any fitness app — double-click the crown to switch.
Battery-friendly
Optimized to run in the background through your longest days.
Podcasts

Queue up before you lace up.

Bookmark podcasts from your phone, queue episodes from your wrist just before your run. Episodes download directly to your Watch so you're covered even when you leave your phone at home.

30-second queue from your wrist
Add episodes without reaching for your phone.
Offline on the Watch
Episodes transfer to Watch storage so you can run phone-free with audio.
Runs alongside your route
Navigation and audio coexist — control your audio from the standard now playing screen.
Private by design

Nothing leaves your phone.

Every bit of AI coaching runs on-device. No account, no cloud upload, no tracking — your health data and your routes stay yours.

On-device processing No sign-up required Zero tracking
Tachymaze

Lace up. We'll handle the line.

Free to download. Plan, navigate and train — safely, offline, and entirely on your device.

Download on theApp Store