Cycle intelligence · London
Your body has a rhythm.
We help you read it.
Reyha reads what your wearable already knows. Temperature, resting heart rate, HRV, sleep. It turns them into what to eat, how to train, when to push and when to wait, with the reason attached every time.
What it actually does
I · Reads
Your wearable, already on your wrist.
Apple Health or Health Connect. Temperature, resting heart rate, HRV and sleep: the signals that shift with your cycle, read against your own baseline rather than a population average.
II · Decides
Four calls a day, not a wall of charts.
Eat, train, sleep, and one that changes with the phase. Each one is a single sentence you can act on before you've finished your coffee.
III · Explains
The mechanism, never the horoscope.
Every line opens into the physiology behind it. Where the evidence is thin, Reyha says so. Where it can't know yet, it hedges instead of guessing.
Most cycle apps stop at logging. Yours should tell you what to do about it.
Millions of women wear a device that measures temperature, heart rate and sleep every night, and track a cycle that moves all three. Almost nothing joins the two up. Reyha is built to do exactly that, and to show its working.
The colour is the phase
See it work
The explainer · Two minutes
05 · Founding 50
The first fifty
get a year.
The founding offer
Premium free for your first year.
The first 50 people on this list get Reyha premium at no cost for a full year from launch. No card now, nothing to cancel. Just an email address, and a say in what we build next.
No spam. A note the day Reyha reaches the App Store, and the occasional update while we build. Unsubscribe whenever you like.
You're on the list. We'll email you the day Reyha reaches the App Store, and confirm your founding place before then.
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