# Kardiacs: Trainer & Route Nav > Ride, run, walk — offline maps Canonical page: [https://chrome-stats.com/d/id6792439405](https://chrome-stats.com/d/id6792439405) ## Overview - **ID:** `id6792439405` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** Kardiacs LLC - **Category:** Health & Fitness - **Rating:** 5.00 / 5 (2 ratings) - **Version:** 26.9.2 - **Last updated:** 2026-09-10 - **First published:** 2026-08-14 - **Size:** 77 MB - **Data as of:** 2026-09-19 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/kardiacs-trainer-route-nav/id6792439405) - **Website:** [https://kardiacs.com](https://kardiacs.com/) - **Privacy policy:** [https://kardiacs.com/privacy-policy](https://kardiacs.com/privacy-policy) ## Description Free ride, run & walk coach: ERG trainer control, offline maps for anywhere on Earth, AI playlists, Apple Watch, plus group voice and chat that need no signal. 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 • Apple Watch companion app for wrist-based control and heart rate • Saves workouts to Apple Health WHERE YOU RIDE STAYS YOURS • Recorded GPS never leaves your phone — position is stripped from every activity before it syncs anywhere • Speech is recognised on your iPhone; no audio is sent anywhere Kardiacs is free, supported by ads. Every feature is free; there is nothing to buy. Notes: Kardiacs speaks 23 languages, chosen in Preferences or from your system. Weather by Apple Weather. Apple Music features require the Apple Music app (and a subscription for full playback). AI Workout Mixes require Apple Intelligence. Automatic resistance control requires a compatible Bluetooth (FTMS or Wahoo) smart trainer. Turn-by-turn guidance requires location access. Group voice needs iOS 26.4 or later on iPhone 12 or newer; other devices still share positions, chat and cards. You must be 16 or older to use Kardiacs; accounts and structured workouts require you to be 18 or older. ## Rankings - #631,355 — Overall ## Similar extensions and apps - [UCRoute: Walk, Run, Hike, Bike](https://chrome-stats.com/d/id1582591738) - [Routa Cycling](https://chrome-stats.com/d/id6762557514) - [CoachCian](https://chrome-stats.com/d/id6766887039) - [Cardinate Fitness](https://chrome-stats.com/d/id6756090896) - [TrainerKit Indoor Cycling](https://chrome-stats.com/d/id6758644426) - [Kiito: Run Bike Swim Tracker](https://chrome-stats.com/d/id6762293111) - [ActivePath AI](https://chrome-stats.com/d/id6760000694) - [KETTMaps](https://chrome-stats.com/d/id624509549) — 2.50 / 5 - [CycleMaps](https://chrome-stats.com/d/id428397791) — 5.00 / 5 - [HeartZone Coach](https://chrome-stats.com/d/id6788023321) - [iBiker Cycling & Heart Trainer](https://chrome-stats.com/d/id292015062) — 4.80 / 5 - [BreakAway: Indoor Training](https://chrome-stats.com/d/id1541280053) — 4.30 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/id6792439405)