ONESYNC
Imagine waking up and getting a message that says: “Your body recovered well. Your sharpest window is 9-12am. That investor email you've been drafting? Now is the time.” That's OneSync.
Not Another Health App
A Score That Means Something
Your Cognitive Readiness Score tells you how sharp you actually are — computed from sleep quality, heart rate variability, your circadian rhythm, and activity. Updated every 15 minutes.
Your Watch, Our Intelligence
Already wear an Apple Watch or Android smartwatch? That's all you need. OneSync reads the data your watch collects and makes it actually useful.
Interventions, Not Notifications
When your stress response fires, OneSync doesn't wait for you to open an app. It reaches you on Telegram with a personalized intervention — before the anxiety registers.
Your Morning Truth Brief
Every morning: how your body prepared for today, what your readiness score means, and one actionable insight. On Telegram, before your first meeting.
Your Data Stays Yours
Health data is the most intimate data you have. It's encrypted on your phone, locked behind row-level security in the cloud, and never logged anywhere.
It Gets Smarter Over Time
By week two, it knows your baselines. By month one, it catches your stress triggers. By month three, it predicts tomorrow based on today.
Designed to Compound
Your Readiness Score
A single number (0-100) that tells you how cognitively sharp you are right now. Computed on your phone, works offline, updates every 15 minutes.
Smart Cost Control
Most checks don't need AI at all — saving you money at scale
Both Platforms
iPhone and Android from day one
Powered by Claude
Personalized, empathetic messaging from Anthropic's AI — not generic push notifications
Meets You on Telegram
Alerts arrive where you already are. Not buried in another app you'll forget to open.
Encrypted End-to-End
Military-grade encryption for the most intimate data you have
Learns Over Months
The longer you use it, the better it knows you. That's the moat.
Where This Goes
Today, OneSync knows your body. Tomorrow, it knows your calendar, your email, your Slack. Eventually, it becomes the operating system for your entire life — starting from the only signal that can't be faked.
Your Body Already Knows
Join the early access and be among the first people whose AI agent actually understands them.
Get Early Access