Background
Now in Beta

Run Together.
Anywhere.

Race friends globally in real-time. Our terrain-normalization engine ensures fair play, while your AI Coach pushes you to the finish line.

Join the Race
5:24 PACE / KM
Dist 4.2 km
Elev +45m
JD
John is 12m ahead
Equivalent Flat Pace
5:22 /km

Real-time Sync

Sub-100ms latency data synchronization connects you with runners in Tokyo, London, or NYC instantly.

Terrain Normalization

Running uphill? Our algorithm boosts your equivalent flat pace so you can race fairly against someone on a track.

Global Racing Engine

Complex physics calculations happen instantly on-device to create the perfect virtual race environment.

1. Connect

Invite a friend via link or match with a runner at your pace level from the global lobby.

2. Normalize

We analyze elevation gain, wind resistance, and surface type to calculate your "True Effort" score.

3. Compete

Hear your opponent's progress through voice cues. Push harder when they surge. Win the digital gold.

Powered by GPT-4o

Your Pacer.
Your Coach.

No more robotic stats. Your AI coach analyzes your biometrics and your opponent's position to give dynamic, motivational voice feedback when it matters most.

  • "Pick it up, John is fading on the hill!"
  • "Your cadence dropped. Shorten your stride."
  • "200 meters to go. Empty the tank!"
Coach AI
Speaking now...
Sarah has increased her pace to 4:50/km. You need to push 5% harder to maintain the lead. You've got this!
How far is she?
She is 45 meters behind, but closing the gap on the downhill.

Built for the dedicated runner

Global Leaderboards

Rank yourself not just by time, but by effort. See where you stand in your city, country, and the world.

01
Alex M.
2,450 pts
02
Sarah J.
2,310 pts

Watch Integration

Works seamlessly with Apple Watch and Garmin. Leave your phone at home.

Health Sync

Syncs directly to Apple Health.

Audio Ducking

Coach lowers music volume to speak.

Runners love the chase

"I used to hate running alone. Now I race my brother in London from my treadmill in Seattle. The elevation fairness is magic."

David K.
Marathoner

"The AI coach is surprisingly human. It knows exactly when I'm slacking off and pushes me to hit that extra km."

Elena R.
Casual Runner

"Clean design, no clutter, just pure racing stats. Finally an app that looks as good as it performs."

Marcus T.
Designer

Ready to race?

Join the waitlist for early access to the beta on iOS. Experience the future of social running.

No spam. Unsubscribe anytime.