Kardiacs

Ride any road, even while still at home.

See the road, feel the climb: ride any route in 3D, from your local loop to the Stelvio, while your smart trainer sets every gradient.

Then ride out together: your group can talk, chat and share one live map phone to phone, with no signal, no server and no account.

RIDE ANY ROAD AT HOME
• A 3D world drawn from real maps: satellite imagery, terrain, roads, buildings and trees
• Ride by day or by night under the real sky. Set the shadows, grass and draw distance to suit your phone
• No trainer? Demo rides the route for you
• Riding indoors in a group? You show on the map, on your route

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. Up to 200 m rider to rider, and further as phones relay it down the line
• Everyone on one live map.
• What you say is typed into the chat too, and read aloud to riders who missed it
• 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. A photo is a note too

FIND YOUR WAY
• Got 45 minutes? Get loops from your door, with the climb and effort up front
• Or pick a classic: famous 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
• Drive to the trailhead with the same turn-by-turn
• Weather before you go: hourly, UV and air quality
• Plan routes on the web, with climb, wind and aero drag worked out

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
• ERG control of Bluetooth smart trainers, pausing when you stop pedalling
• 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

RECOVER
• Rest day or hard day? Readiness from your sleep, HRV and stress in Health Connect, worked out on your phone
• Every session analysed: 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; critical pace and VO₂max too
• Every ride is written down as it happens, so a flat battery can't lose it

SHARE THE RIDE
• Flyover 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

WORKS WITH WHAT YOU HAVE
• Health Connect, in and out
• Open FIT, TCX and GPX files, or bring your history from a Strava or Garmin archive
• Send routes and workouts to your bike computer, and import the rides it records
• Bluetooth trainers, treadmills, heart-rate monitors and sensors

WHERE YOU RIDE STAYS YOURS
• Your GPS position is stripped from every activity before it syncs
• Speech is recognised on your phone. No audio is sent anywhere
• Group rides go phone to phone. They never reach us
• No sign-up wall. Delete your account, and everything in it, from Settings

Notes: Group voice needs Wi-Fi Aware between Android phones (Android 13 or later) and a phone whose security module can sign; any phone, iPhone included, still shares the map, chat and cards over Bluetooth. Range varies with terrain. ERG and indoor route rides need a Bluetooth FTMS or Wahoo smart trainer. Dictation needs on-device speech recognition. Gemini Nano writes readiness notes, session summaries and route conditions on phones that have it. Weather by Open-Meteo. Android 13 or later, on phones and tablets. In 23 languages. Ages 16+; 18+ for accounts and structured workouts.