
Kin | Performance Intelligence
Your performance diary
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Free
About
Kin is a performance intelligence system built to understand what actually drives your performance.
Originally developed with elite athletes, Kin combines daily reflection with physiological data to reveal the patterns behind your best and worst days.
So you can stop guessing and start making better decisions.
How it works
1. Daily performance check-in
Log how you felt, performed, and recovered in under a minute.
2. Connect your data
Sync sleep, recovery, and training from your wearables.
3. Reveal your patterns
Kin analyzes the relationship between how you feel and how you perform.
What makes Kin different
Most apps track metrics.
Kin connects:
• How you feel
• What you do
• How you perform
Then turns it into clear, actionable insight.
What you get
• Personal performance insights based on your real data
• Pattern recognition across recovery, stress, training, and habits
• Daily guidance tailored to your current state
• A system that gets smarter over time
Built from elite performance
Kin started with professional athletes.
The goal was simple:
Understand what actually leads to consistent high performance.
That same system is now available to you.
For two use cases
• When performance feels inconsistent and you don’t know why
• When you want to reliably replicate your best days
This is not another tracking app.
This is the system that helps you understand yourself.
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What's New in Kin | Performance Intelligence
2.0.10
August 12, 2026
- Add a note to your session. After you log a session you can write what it actually was, in your own words. It sits on that day in your diary, you can edit it later, and Kin reads it at your next check-in. - New: a glossary of every metric, under Support in My Kin. definitions, and what a low or a high value actually means. - Values with no reading behind them are hidden instead of showing something that isn't there. - Additional bug fixes related to your wearables
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