Every run leaves a line.Run together, and they overlap.

Run alone and it's one line. Bring your phones together before you start and it's several. When you finish, the lines are already a card.

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Bring your phones together,and you're a crew.

Hold your phones within a meter of each other. After about a second you're grouped, and the count goes up with every person who joins. No shaking, no tapping phones.

1Running together

Seen from above, four hands bring their phones toward the center of a circle

Only the phones you gatherEven on a riverside with two hundred runners, only the phones held together join. Someone jogging past stays out.
Two to thirty peopleOne more person can join a group that's already formed, and two groups that gather become one.
Alone? Just startIf you didn't gather with anyone, the same button starts a solo run. There's no mode to pick.

Four pairs of running shoes lined up behind a white line on wet asphalt

Everyone starts at once.

When the last person taps Start, every screen counts down together and everyone starts at the same moment, even with the screen locked.

Spread out,still running together.

Different paces pull you apart, but the group stays. You see each other's distance and pace, and one tap on a name sends a high five to their wrist.

A high five from a teammate on the watch of a runner mid-stride

The entrance of an underpass lined with orange lights, the floor wet

Lose the signal,keep the line.

Where GPS drops out, under a bridge or through an underpass, your steps carry the distance using the stride SyncRun has learned. When the signal returns, the distance doesn't arrive in one lump, so your pace doesn't spike.

0.00kmMeasuring by GPSMeasuring by steps

Whoever finishes firstwaits and cheers.

Everyone stops on their own. Those who finish first see who's still running, and when the last runner comes in, today's combined distance and highlights are complete.

Us today0.00km

Doyun2.88 kmRunning
Haeun3.77 kmSteadiest paceRunning
Seoyeon4.51 kmFastest paceRunning
Me5.24 kmRan the farthestRunning

When you finish,the card is already made.

No template to pick, nothing to set up. Each runner gets their own color, and everyone's distance adds up on one card.

1The lines redraw every time Open the card and the route draws once from the start. Whoever finished first arrives first.
2No map by default The default card keeps only the shape of the route on the brand color. Switch to a photo or a map if you want, and places are shown only down to the neighborhood.
3Ready for Stories Export the route drawing itself as a 9:16 video and post it right away.

Hands of a runner sitting outside a convenience store after a run, looking at the card on a phone