Personalized daily protocols, powered by AI

Wake up.
Your protocol
is ready.

Chrono builds your personalized daily plan for sleep, fasting, supplements, and stress management — then adapts it as you go.

Build Your Protocol
TODAY LIVE
7:00 AM Wake. 16:8 fast begins.
8:00 AM Vitamin D3 + K2 with breakfast
12:00 PM First meal. Eating window opens.
2:00 PM Omega-3 with lunch
8:00 PM Magnesium glycinate. Begin wind-down.
9:30 PM Sleep. Fast ends at 12:00 PM tomorrow.
AI-updated daily · $30/mo
Why timing changes everything

Knowing what to do
is not the same as
knowing when.

Most health apps show you what to track. Chrono tells you what to do, and when. Supplement timing, fasting windows, stress protocols — all personalized to your schedule, goals, and biology.

4 Pillars: sleep, nutrition, supplements, stress
1 Daily protocol, built fresh each morning
$30 per month. No contracts. Cancel anytime.

Fasting Windows

16:8, 18:6, or custom — your eating window is tuned to your schedule and goals. The app reminds you when to stop, not just when to start.

Sleep Optimization

A wind-down protocol built around your schedule — light exposure timing, caffeine cut-off, supplement stack for sleep quality.

Supplement Timing

Not just what to take, but when. Vitamin D with fat in the morning. Magnesium at 9pm. Timing affects absorption — we factor that in.

Stress Protocol

Morning breathwork, afternoon cold exposure, evening grounding — your daily nervous system support, timed to your physiology.

The gap between knowing
and doing is where health
goes to die.

Chrono exists to close that gap. A daily protocol, personalized by AI, delivered each morning. No dashboards to interpret. No decisions to make. Just your day, structured for longevity.

Build Your Protocol — Free
Wake up. Follow your protocol. Repeat.