Kardiacs: Trainer & Route Nav
iOS app by Kardiacs LLC. Health & Fitness · Kardiacs LLC
- Store rating
- 5 / 5
- Store rating count
- 2
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 26.9.2
- Listing last refreshed
- 2026-09-17
View the original store listing
Store description excerpt
Kardiacs is your training partner for riding, running and walking — indoors on a smart trainer or treadmill, outdoors on roads and trails. No sign-up wall: open it and start — and your recorded GPS never leaves your phone. Every workout is personalized. Kardiacs models your fitness with Critical Power (CP/W′) and adapts power targets, pace targets and heart-rate zones to you — from your history, Apple Health, or a quick profile. RIDE TOGETHER, OFF THE GRID • Form a group in person with a QR code — no signal, no account, no server in the middle • Every rider on one map, with their training numbers on their card • Talk to the whole group hands-free or push-to-talk, end-to-end encrypted • Group chat with camera photos, over the same phone-to-phone radios • What you say is written into the chat too, by your own phone — so it reaches a rider your voice can't, and is read aloud so nobody looks down • The leader's route reaches every phone; any rider can ask for a stop — a café, water, a bike shop — or call for help NOTES WITHOUT STOPPING • Not in a group? Unmute and talk: what you say becomes a note, written down on your phone • Snap a junction or a gate number — a photo is a note with no words • Every ride's notes and conversations are kept together under Settings → Chat & Notes, to read, export or delete OUTDOOR SESSIONS • Explore: drop a pin, pick a workout, and get loops that fit it • Commute: plan A-to-B routes from stops and saved routes • Long-press a café, park or bike shop to make it a stop — your route re-plans through it • Restrooms and drinking water near your route, with one-tap stops through the nearest • Turn-by-turn cues spoken aloud, on the phone and on the wrist • Routing runs on your device: download a map, then plan, reroute and navigate with no signal at all • Take anywhere on Earth with you: search a place, see the size, and download its map — as many as you like MUSIC THAT MATCHES YOUR EFFORT • Apple Music controls in your session, and AI Workout Mixes: a playlist beat-matched to your cadence or stride, curated on device by Apple Intelligence INDOOR TRAINING • Automatic trainer control (ERG): your workout drives the resistance on compatible Bluetooth trainers • Treadmill sessions with grade-adjusted pace targets • A workout library resolved to your own thresholds, or build your own — on the phone or at app.kardiacs.com WEATHER BEFORE YOU GO • Hourly conditions, UV, air quality and severe-weather alerts — and on a planned route, the wind against the road still ahead PROGRESS • Track your fitness over time: Critical Power, W′, and VO₂max • Every ride is written down as it happens, so a flat battery can't lose it • See any past ride on its own map, and share its file — with or without the track • Your history follows your account to a new phone YOUR GEAR, ORGANIZED • Connects to Bluetooth trainers, treadmills, heart-rate monitors and sensors • Send a route or a workout to your bike computer, and import the rides it records
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