
About
Experience immersive 3D cycling routes from your local roads to famous climbs. Ride with groups off-grid, communicating and sharing a live map. Get personalized training plans, strength sessions, and recovery insights based on your data.
What's New in Kardiacs
26.11.1
November 4, 2026
• Indoor route rides, rebuilt: ride a 3D world drawn from our own maps, with satellite imagery, terrain, the route's roads, bridges, tunnels, buildings and trees, seen through the rider's eyes and held in landscape. The ride flies in at the start and out at the finish • Ride by day or by night under the real sky, with the Moon and your own lights. Graphics, in the Workout menu, sets the shadows, grass, draw distance and time of day • On a route ride the intervals card sits at the top and the directions strip at the foot. A route's Ride takes you indoors, and Export GPX is at the foot of its page • No trainer or treadmill? Demo rides the route for you at a pro's effort, and keeps nothing • In a group, a rider indoors shows on the map on their route, not at home • ERG pauses itself when you stop pedalling, and picks up when you pedal again • FIT files you export now upload to Strava, rides recorded before this version too, and each is named by its date and session • Flick the Calendar to turn the month or week • Choose another workout from the indoor Workout menu, and closing an indoor ride's summary takes you back to where you started • A route you import is kept once, however often you open it • Share says that your ride's start and finish are hidden • The ride's 3D world credits its sources; a tap opens Data Sources & Credits • Bug fixes and performance improvements
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FAQ
What is Kardiacs?
Kardiacs is an indoor and group ride application that allows users to ride 3D routes from real maps. It offers features for both solo training and off-grid group rides with communication and a shared live map.
Can I ride with friends on Kardiacs?
Yes, Kardiacs allows you to ride together in groups off-grid. Up to 200m rider-to-rider communication is supported, with phones relaying signals further. Groups can talk hands-free or push-to-talk, and everyone sees one live map.
Does Kardiacs work with smart trainers?
Yes, Kardiacs offers ERG control for Bluetooth smart trainers. Your workout sets the watts interval by interval, and the trainer pauses when you stop pedaling.
How does Kardiacs personalize training?
Kardiacs personalizes training by scaling workouts to your fitness using Critical Power for rides and critical speed for runs. It also provides adaptive training plans based on your recovery, which is assessed from sleep, HRV, and stress.
What kind of routes can I ride on Kardiacs?
You can ride any road in 3D, from your local loop to famous climbs like the Stelvio. The app uses real maps with satellite imagery, terrain, roads, buildings, and trees. You can also find classic climbs, races, and trails.
Does Kardiacs have ads?
Yes, Kardiacs contains advertisements. As a free application, it is supported by ads to provide its features to users.
What devices support Kardiacs?
Kardiacs is supported on Apple Watch, iPhone, and iPad, allowing you to track your rides and access features across multiple Apple devices.
How often is Kardiacs updated?
The latest version of Kardiacs is 26.11.1, and it was last updated on November 4, 2026. Updates typically bring new features, performance improvements, and bug fixes.












