Your body is not the same every day
Sleep, stress, soreness and the load of the last few days all change what you can do today. Training hard through accumulated fatigue without noticing it is one of the most common reasons athletes stall. The signals exist, you just need to capture them.
ZON makes that capture effortless.
The daily check-in: a few seconds, three questions
Every morning, ZON surfaces a short check-in on the Today screen. Three dimensions:
Sleep quality. How well did you actually sleep? Not just hours, how rested you feel.
Fatigue and soreness. How does your body feel right now? Heavy legs? Sore from yesterday?
Mood and motivation. Mental state affects performance more than most athletes admit.
Three taps and you're done.
One readiness score, one clear call
ZON combines your check-in with the sleep and HRV it reads from Apple Health and with your recent training load. The result is a daily readiness score and a plain recommendation:
- Push: you're recovered, today is a good day to go hard
- Hold: train, but keep intensity in check
- Recover: this is not the day to test your max
The AI copilot uses the same signal to adapt your session and explain why, so the plan follows how you actually recovered.
Weekly body check
Once a week, you can log a deeper check for your own tracking:
- Body weight over time with a trend line
- Notes on how the week felt, any pain or concern
- Progress photos stored privately in your account
Over weeks, you see how your readiness, your load and your body evolve together.
In the ZON app on iPhone. Android is in beta: join the waitlist at justzon.com/android-waitlist.
