Coming soon

Understanding your biology to improve your health.

Yoi Bio brings at-home finger-prick testing, a smart ring and an AI assistant together in one app, so you can see what is going on inside your body and act on it.

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The YOI BIO-One reader next to a phone showing the Yoi Bio app with a health score and key markers
The Yoi Bio system

Test, track and understand.

Three parts, one picture of your health. Each is designed to work on its own and better together.

YOI BIO-One

A compact reader and single-use test cartridges for finger-prick testing at home. Results sync straight to the app.

YOI BIO Smart Ring

Continuous insight from a ring you will forget you are wearing. Sleep and heart rate, day and night, in the same app.

YOI BIO AI

Your results, explained. The in-app assistant helps you understand what your numbers mean and how they change over time.

Version 1 panel

The markers in version 1.

YOI BIO-One launches with a finger-prick panel covering blood sugar, cholesterol, blood, metabolic and kidney markers. More panels and markers are in research and development, and the reader is designed so new cartridge types can add them without replacing it.

  • Blood sugar

    Glucose

    Your blood sugar level at the moment you test.

  • Blood sugar

    HbA1c

    Your average blood sugar over the past two to three months.

  • Cholesterol

    Total cholesterol

    The overall amount of cholesterol in your blood.

  • Cholesterol

    HDL cholesterol

    The protective kind, with LDL worked out from the rest of the panel.

  • Cholesterol

    Triglycerides

    A type of fat in the blood, linked to diet and heart health.

  • Blood

    Haemoglobin

    The protein in red blood cells that carries oxygen around the body.

  • Blood

    Haematocrit

    The share of your blood that is made up of red blood cells.

  • Metabolic

    Ketones

    Produced when your body burns fat for fuel instead of sugar.

  • Metabolic

    Lactate

    Rises during hard exercise; a guide to effort and recovery.

  • Metabolic

    Uric acid

    A waste product; high levels are associated with gout.

  • Kidney

    Creatinine

    A waste product cleared by the kidneys, used to gauge kidney function.

In development: further panels and markers. We will publish them here as each is confirmed.

A man at a kitchen counter taking a finger-prick sample, with the YOI BIO-One reader and a box of test cartridges beside him
At home

Testing at home, on your own terms.

A quick finger-prick, a single-use cartridge and the YOI BIO-One reader. No appointment, no waiting room. Your results go straight to the app, where you can keep them and watch how they change.

The YOI BIO Smart Ring next to a phone showing ring status, health score, sleep and heart rate in the Yoi Bio app
Day and night

One app. The whole picture.

Finger-prick results and continuous data from the YOI BIO Smart Ring come together in one clear view, with the YOI BIO AI assistant on hand to explain what you are looking at.

  • A health score that brings your results together
  • Clear results with plain-English explanations
  • Ask the YOI BIO AI assistant anything about your data
The name

Good biology.

Yoi is Japanese for good. Bio is life. Yoi Bio is about understanding your own biology, so you can live well.

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