Wellness score is how you feel — your self-reported snapshot of sleep quality, duration, mood, stress, recovery, physical test and health. It captures the athlete experience that no wearable can measure directly.

It gives you context to your training data.

We measure this by randomised questions about your sleep hours, sleep quality, recovery, mood, stress and a quick physical test. These are calculated with a recency weighted emphasis from the scores you have logged over the past week to give its best overall picture of you.

By combining the subjective questions with the health data from wearables it makes an ok system, unbeatable! There is so much research that shows that wearables can be really inaccurate in telling us when something is wrong, where subjective questions will give us the information earlier and more accurately.

So when you combine both...Boom! That's where the magic is. But it only works if you log daily. If you miss it, the app will likely miss it too.

Take your health and performance seriously and log daily. It takes 60 seconds

Training Load is what you do — the stress of each session, measured by duration × intensity, adjusted for activity type. Two athletes might train for the same time, but if one goes easy and the other goes hard, the Training Load separates those realities.

The core of the training load is RPE (Perceived Effort) x Time (mins).

In PEAK^, you log how hard the session was from both a Respiratory and Muscular point of view using the RPE scales (Rate of Perceived Exertion, from 1–10), where 1 is just harder than doing nothing and 10 is equivalent to the hardest thing you have done.
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Having both RPE measures ensures that strength training isn’t undervalued compared to endurance work.
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Once entered, the app automatically calculates your Training Load.

PEAK^ score is how you’re responding — it combines the work you’ve done with how you’re recovering, assessing your Training Load, Wellness, and physiological data (like HRV, RHR, respiration). A high PEAK^ score says your system is adapting well; a low score warns you’re digging into reserves.