PaceBuddy: Smart Pacer

Race your own best on the routes you already run. Live ahead/behind coaching, falling-behind alerts, and a standalone Apple Watch app.

Everyone has a route they do over and over — the same loop, the same hill, the same trail. PaceBuddy is built on one idea: on that route, the only pace worth chasing is your own.

It replays your last run beside you, second by second, and tells you whether you're ahead or behind and by how far. Race your last attempt, or your best.

RACE YOURSELF, NOT A STRANGER • Live ahead/behind against your own past run on the same route • Choose your last run or your personal best as the target • Works even if you start the loop from a different point each day • Falling-behind alerts by vibration, beep, or spoken callout • Distance announcements at every kilometre or mile • Lap splits with distance, time, pace and calories

BUILT FOR REAL TERRAIN • Elevation from the barometer, not GPS altitude — far more accurate on hills • Distance from GPS Doppler speed with step-based stride calibration, so it holds up under tree cover and on switchbacks • Calories that account for the metabolic cost of climbing, not just distance • Heart-rate zones when you wear an Apple Watch

APPLE WATCH, WITH OR WITHOUT YOUR IPHONE • Standalone workouts — leave the phone at home • Create routes on your wrist; they sync back automatically • Live heart rate and heart-rate zones • Lap splits and alerts on the watch too

PRIVATE BY DESIGN • No ads — ever • No subscription. One purchase, yours forever • No account, no sign-up, no tracking, no analytics • No third-party SDKs

PaceBuddy has no servers and makes no network connections. Your workouts, routes and settings stay on your devices — aside from heart-rate and workout data you choose to sync through Apple Health.

TRY IT FIRST PaceBuddy is free for 14 days, with everything unlocked. After that, a single one-time purchase keeps it. No subscription, no renewal, and the workouts you recorded stay readable either way.

A NOTE ON HOW IT WORKS Pace coaching compares you to your own history on a given route, so it appears from your second workout on that route onward — a first run has nothing to race yet. Workouts under 100 m are treated as accidental starts and discarded.