Kardiacs: Group Ride & Maps

Lose the signal. Keep the group. Your group can talk, chat and share one live map phone to phone — with no signal, no server and no account. Up to 200 m rider to rider, and further as phones relay it down the line. Plus everything else the ride needs: offline turn-by-turn, loops sized to your time, smart-trainer workouts that set the watts for you, and a daily readiness call from your sleep and HRV. RIDE TOGETHER, OFF THE GRID • Join with a QR code. No account, no signal, no server in between • Talk hands-free or push-to-talk, end-to-end encrypted • Everyone on one live map. A run or walk group is paced for its slowest • What you say is typed into the chat too, for anyone out of voice range • The leader's route reaches every phone. Anyone can ask for a stop or call for help • Plan a ride ahead and send the link: where, when, and a code to scan at the start SAY IT. IT'S WRITTEN DOWN. • Riding alone? Unmute and talk: the gate, the water, the bad corner becomes a note • Recognized on your iPhone, and kept there FIND YOUR WAY • Got 45 minutes? Get loops from your door, with the climb and effort up front • Or pick a classic: the best-known climbs, races, gravel roads and trails, with today's conditions • Every turn spoken aloud, on maps you download for anywhere on Earth. No signal needed • Wandered too far? Tap back and be home by the time you set • Commute fast without arriving drenched • Drive to the trailhead with the same turn-by-turn • Weather before you go: hourly, wind on your route, UV, air quality and alerts TRAIN • Set a goal, from a mile to an ultra or a century to 200 miles, and get a plan that adapts to how recovered you are • Strength sessions: the plan's lifts with target weight, reps and rest, each set spoken as you go • You pedal, it sets the watts: ERG control of Bluetooth smart trainers • Ride any route indoors, from your local loop to the Stelvio: your smart trainer sets every climb's gradient as the map follows you • Every workout scaled to your own fitness: Critical Power for rides, critical speed for runs • Build your own, on your phone or on a big screen at app.kardiacs.com • AI Workout Mixes: a playlist beat-matched to your cadence, made on your iPhone by Apple Intelligence RECOVER • Rest day or hard day? Readiness from your sleep, HRV and stress, worked out on your iPhone • Every session analyzed: power, pace and heart-rate zones • Every ride says how much of it was new ground, and when it was your best • Critical Power and W′ learned from every ride, with their likely range; critical pace and VO₂max too SHARE THE RIDE • Fly your ride: a video that follows you across satellite terrain, with your photos popping where you took them, ready for your Instagram Story or TikTok ON YOUR WRIST, ON THE BIG SCREEN • Apple Watch: zones, turn-by-turn and music, without touching your phone • iPad shows your library, plan and power curve side by side • Plan routes on the web with climb, wind and aero drag worked out WORKS WITH WHAT YOU HAVE • Apple Health, both ways • Open FIT, TCX and GPX files, or bring your history from a Strava or Garmin archive • Send routes and workouts to your bike computer WHERE YOU RIDE STAYS YOURS • Your GPS position is stripped from every activity before it syncs • Planned routes, saved addresses and health data stay on your iPhone • Group rides go phone to phone. They never reach us • No sign-up wall. Delete your account, and everything in it, any time Notes: Group voice needs iPhone 12 or later on iOS 26.4+, with other iPhones; map and chat work with any phone running Kardiacs. Range varies with terrain. ERG and indoor route rides need a Bluetooth FTMS or Wahoo smart trainer. Weather by Apple Weather. Music features need the Apple Music app; AI Workout Mixes need Apple Intelligence. In 23 languages. Ages 16+; 18+ for accounts and structured workouts.