Your watch collects incredible data about your body. Heart rate, sleep stages, HRV, workouts, recovery — it's all there in Apple Health. The problem is, none of it tells you what to actually do.
Corpus reads that data and turns it into something useful: a daily briefing on how your body is doing, a weekly training plan built around your goals, and an AI coach you can talk to whenever you need guidance.
Open the app in the morning and you'll see where you stand. Not numbers — clear states. Your sleep was fair. Your readiness is low. Your recovery is depleted. Strain is climbing. Each one is derived from your real biometric data using published clinical thresholds, not a single made-up score.
Below that, your AI coach has already written you a daily comment. It might tell you to back off today because your HRV has been trending down all week. Or it might push you to hit that tempo run because your recovery looks strong and your marathon is eight weeks out. It's specific to you, every single day.
Set your goals — run a half marathon, gain muscle, sleep better, manage stress — and Corpus builds a training plan that fits your schedule. It knows your work hours, your recovery status, and what you did last week. Plans update automatically as your body responds.
The chat is where it gets interesting. Ask your coach to adjust today's workout, explain why your readiness tanked, plan your diet around a race, or figure out what to focus on this month. It has your full health picture and your goals in front of it at all times.
One of the most useful features takes about ten seconds a day: three yes-or-no questions each morning, picked based on what your data looked like overnight. Did you drink alcohol? Late screen time? Stressful day? Over a few weeks, Corpus starts connecting the dots. You'll see statements like "Alcohol is associated with 20% less deep sleep" or "Late meals drop your readiness the next day" — backed by your own data, not generic advice.
You can also snap photos of meals. The AI describes what it sees, tags relevant behaviours automatically, and feeds it all into the same correlation engine. No calorie counting, no food diaries — just a quick photo and the app handles the rest.
Every workout gets a proper breakdown: heart rate over time, zone distribution, pace splits, route maps, running dynamics. And each one comes with an AI-generated insight that connects the session to your training plan and your goals.
Corpus works best with Apple Watch, but it's compatible with any device that syncs to Apple Health — Garmin, Samsung, Fitbit, or a smart scale. If the data is in Apple Health, Corpus can use it.
Your data stays on your device. Only structured summaries are sent to the AI — never raw biometrics. No accounts, no ads, no tracking. You can delete everything at any time from the app.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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