KronixAI
Your AI-powered health companion
KronixAI is an iPhone app that brings your sleep, fitness, nutrition, and daily life into one place — and uses AI to reason across all of them together, so the advice you get accounts for your whole picture instead of one isolated metric.
Download on the App StoreiPhone · iOS 15.1 or later · Free to download
What KronixAI does
Most health apps track one thing well and leave you to connect the dots. KronixAI is built around the connections: your poor sleep last night, the heavy leg session two days ago, the late dinner, and the flight you took this week are all part of the same story. The app keeps that story in one record and reasons over it.
Sleep
Nightly stages, timing, heart-rate variability, and resting heart rate — with the trends that actually explain how you feel.
Fitness
Workouts, exercises, sets, and activities, with per-exercise history and progress over time.
Nutrition
Meals and macros, logged by text or photo — the AI estimates the numbers so logging isn't a chore.
Recovery & injuries
Injuries, pain check-ins, and rehab guidance that adapts as you recover.
AI coach
Ask questions in plain language, log by chatting, and get a straight answer on whether to train, modify, or rest today.
Daily health scores
A daily read on how you're doing and a longer-term view of where you're trending.
How it works
- Connect your data. Log entries yourself, or connect Apple Health, an Oura Ring, or Google Calendar so your records fill in automatically.
- The AI reads across everything. With your explicit consent, the relevant parts of your health record are analyzed together — not one pillar at a time.
- You get insights and coaching. Personalized daily insights, health scores, and a chat coach that already knows your history, so you're not re-explaining yourself.
Your data is yours: everything is scoped to your account, nothing is sold or used for advertising, and you can delete your account and all associated data from inside the app at any time.
Connecting Google Calendar
Why KronixAI asks for calendar access
Your schedule explains a lot of your health data. A red-eye flight, a dentist appointment, a 6 a.m. soccer game, or a week of back-to-back dinners all show up in your sleep and training numbers — but only if the app knows they happened.
Connecting Google Calendar is optional and off by default. When you turn it on, KronixAI requests read-only access and uses only your events' titles and start/end times. A relevance filter runs first, and only health-relevant events — travel, workouts, appointments, social plans — are saved into your health log so the coach can account for them. Event descriptions, attendees, locations, and attachments are never stored, and KronixAI never creates, edits, or deletes calendar events.
You can disconnect at any time in the app. Full details, including our Google API Limited Use commitments, are in the Privacy Policy.