Klyft: AI Health & Recovery

NEW — Biological Age and biomarker tracking. Upload your lab reports, see how fast you're ageing, and train the number down.

Klyft is the operating system for your body.

Most apps track one thing. Klyft connects everything — sleep, recovery, training load, nutrition, and now your biomarkers — into one intelligent system that adapts to your body every single day.

ONE SCORE. EVERY MORNING. Your wearable collects thousands of data points overnight. Klyft turns them into one number you can actually use: the Arc Score. Three pillars. One decision.

Recovery — sleep quality, HRV, daily readiness Nutrition — calories, protein, macros, glycaemic load Fitness — training load, VO₂ Max, acute-to-chronic ratio

KNOW YOUR BIOLOGICAL AGE Your birth certificate holds one number. Your biology holds another. Klyft estimates your Biological Age from your biomarkers, recovery, and fitness data — then shows you how fast you're ageing and what actually moves the needle. Train it down. Watch it change. Ageing just became a metric.

YOUR LAB REPORTS, DECODED Upload any lab report — photo or PDF. Klyft extracts your biomarkers, explains each one in plain language, and tracks how every marker moves over time. Then it connects the dots: your labs add context to your training, your nutrition, your daily plan. Blood tests stop being paperwork. They become part of the picture.

WORKOUTS THAT ADAPT TO YOUR RECOVERY Klyft doesn't hand you a static programme. It reads last night's sleep, checks your recovery, and builds today's session around what your body can actually handle. Every workout adapts. Every day.

SNAP A PHOTO. NUTRITION LOGGED. Point your camera at any meal. Klyft reads the calories, protein, and macros in seconds — then folds it into your training plan. Your nutrition and your workouts finally talk to each other.

AI COACH. POWERED BY YOUR DATA. Ask Klyft anything. "Should I train today?" "Why is my HRV down?" "What should I eat to recover faster?" Every answer is grounded in your real data — HRV, sleep, training load, biomarkers — not generic advice.

WORKS WITH YOUR WEARABLES Apple Watch, Garmin, Oura, WHOOP, Fitbit, Polar, Coros, Suunto, Wahoo, Withings, and continuous glucose monitors including Dexcom and Abbott Libre. Bring the device you already own.

GROUNDED IN SCIENCE Every calculation is built from 800+ peer-reviewed studies. Your Biological Age is built on the Hallmarks of Aging framework. Your Arc Score is a formula you can audit — transparent, documented, and evolving with your body.

WHO KLYFT IS FOR

Athletes who want their data to do more than sit on a dashboard Longevity-focused people who want to know their Biological Age — and lower it High performers managing training, recovery, nutrition, and labs across too many apps Anyone who checks their HRV before they check their email

Start your free trial and see what your body has been trying to tell you.

Klyft is a wellness and fitness product, not a medical device. It doesn't diagnose, treat, or prevent any condition — for anything medical, talk to your doctor.