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Get early access

Be among the first to end the health guesswork.

Join the waitlist and receive updates. Unsubscribe any time.

Get early access

Be among the first to end the health guesswork.

Join the waitlist and receive updates. Unsubscribe any time.

Discover what our first members are saying about Calibre.
  • "I've been trying to be on top of my health: tracking activities and food, occasionally doing blood tests and trying to interpret the results. Calibre has brought clarity and focus to my approach. In my first 12 weeks I have made substantial progress and look forward to continuing the journey to be the healthiest and strongest version of myself."

    Lili 33, Marketing Executive

    “I would never have learned that I was doing too much zone 4/5 cardio. I would have just kept going… I really appreciate these fine nuances that you've caught”

    Y. 38, Start-up founder

    “Three out of four weeks my energy level is superb across the different dimensions. My baseline has shifted up for sure. I feel like my sleep has also noticeably improved, which enabled me to do harder (workout) sessions.”

    T. 41, CEO

    “Calibre has given me a clear picture of my current health profile and what areas I need to work on and what my longer term risks are. I really value the care and insights from Calibre, the team is top notch and I feel that their method will help me reach my goals.”

    Serena 40, busy new mum returning to work

    “The main benefit of Calibre has been clarity about the 1-2 underrated levers I have to maximise my day-to-day energy level.”

    Pablo 34, Designer at tech start-up

    "It's been a really frictionless way of getting an understanding of where I am at health-wise, and what the biggest blockers are to my long-term goals. For anyone who wants to be healthy long term and actually wants to take some action, this will really help guide you into what are the most meaningful actions for you."

    Adam 36, Busy professional & dad

    “I'm happy to say that because of Calibre the mystery (of my health situation) was solved. I don't think it would be possible with any other health service provide. Everyone does a little piece of the puzzle, but no one joins the dots and that is the really key thing.”

    Faheem 36, Business Owner

    “Collating all my very fragmented data, pulling it together, and having a doctor review this information as a whole to show me the strengths, weaknesses and opportunities of my health… That was the biggest shift for me.”

    Victoria 31, Engineering Professional at AI company

    “Other health solutions I’ve tried just ask you a few questions and then give you some standard solutions. Calibre took the right amount of time to understand me and give really bespoke solutions.”

    M. 34 Data engineering professional

    “There is a direction, there is a plan, and there is a toolkit. I know the levers I can move to make a change.”

    R. 40, Frequent traveller & business owner

Discover what our first members are saying about Calibre.
  • "I've been trying to be on top of my health: tracking activities and food, occasionally doing blood tests and trying to interpret the results. Calibre has brought clarity and focus to my approach. In my first 12 weeks I have made substantial progress and look forward to continuing the journey to be the healthiest and strongest version of myself."

    Lili 33, Marketing Executive

    “I would never have learned that I was doing too much zone 4/5 cardio. I would have just kept going… I really appreciate these fine nuances that you've caught”

    Y. 38, Start-up founder

    “Three out of four weeks my energy level is superb across the different dimensions. My baseline has shifted up for sure. I feel like my sleep has also noticeably improved, which enabled me to do harder (workout) sessions.”

    T. 41, CEO

    “Calibre has given me a clear picture of my current health profile and what areas I need to work on and what my longer term risks are. I really value the care and insights from Calibre, the team is top notch and I feel that their method will help me reach my goals.”

    Serena 40, busy new mum returning to work

    “The main benefit of Calibre has been clarity about the 1-2 underrated levers I have to maximise my day-to-day energy level.”

    Pablo 34, Designer at tech start-up

    "It's been a really frictionless way of getting an understanding of where I am at health-wise, and what the biggest blockers are to my long-term goals. For anyone who wants to be healthy long term and actually wants to take some action, this will really help guide you into what are the most meaningful actions for you."

    Adam 36, Busy professional & dad

    “I'm happy to say that because of Calibre the mystery (of my health situation) was solved. I don't think it would be possible with any other health service provide. Everyone does a little piece of the puzzle, but no one joins the dots and that is the really key thing.”

    Faheem 36, Business Owner

    “Collating all my very fragmented data, pulling it together, and having a doctor review this information as a whole to show me the strengths, weaknesses and opportunities of my health… That was the biggest shift for me.”

    Victoria 31, Engineering Professional at AI company

    “Other health solutions I’ve tried just ask you a few questions and then give you some standard solutions. Calibre took the right amount of time to understand me and give really bespoke solutions.”

    M. 34 Data engineering professional

    “There is a direction, there is a plan, and there is a toolkit. I know the levers I can move to make a change.”

    R. 40, Frequent traveller & business owner

Discover what our first members are saying about Calibre.
  • "I've been trying to be on top of my health: tracking activities and food, occasionally doing blood tests and trying to interpret the results. Calibre has brought clarity and focus to my approach. In my first 12 weeks I have made substantial progress and look forward to continuing the journey to be the healthiest and strongest version of myself."

    Lili 33, Marketing Executive

    “I would never have learned that I was doing too much zone 4/5 cardio. I would have just kept going… I really appreciate these fine nuances that you've caught”

    Y. 38, Start-up founder

    “Three out of four weeks my energy level is superb across the different dimensions. My baseline has shifted up for sure. I feel like my sleep has also noticeably improved, which enabled me to do harder (workout) sessions.”

    T. 41, CEO

    “Calibre has given me a clear picture of my current health profile and what areas I need to work on and what my longer term risks are. I really value the care and insights from Calibre, the team is top notch and I feel that their method will help me reach my goals.”

    Serena 40, busy new mum returning to work

    “The main benefit of Calibre has been clarity about the 1-2 underrated levers I have to maximise my day-to-day energy level.”

    Pablo 34, Designer at tech start-up

    "It's been a really frictionless way of getting an understanding of where I am at health-wise, and what the biggest blockers are to my long-term goals. For anyone who wants to be healthy long term and actually wants to take some action, this will really help guide you into what are the most meaningful actions for you."

    Adam 36, Busy professional & dad

    “I'm happy to say that because of Calibre the mystery (of my health situation) was solved. I don't think it would be possible with any other health service provide. Everyone does a little piece of the puzzle, but no one joins the dots and that is the really key thing.”

    Faheem 36, Business Owner

    “Collating all my very fragmented data, pulling it together, and having a doctor review this information as a whole to show me the strengths, weaknesses and opportunities of my health… That was the biggest shift for me.”

    Victoria 31, Engineering Professional at AI company

    “Other health solutions I’ve tried just ask you a few questions and then give you some standard solutions. Calibre took the right amount of time to understand me and give really bespoke solutions.”

    M. 34 Data engineering professional

    “There is a direction, there is a plan, and there is a toolkit. I know the levers I can move to make a change.”

    R. 40, Frequent traveller & business owner

Doctor-founded

Calibre was founded by Dr Reinhold Innerhofer, a clinician and sports scientist who spent his career at the intersection of preventative medicine and elite sport.

Built on Causal AI

Purpose built AI, grounded in cause and effect science, not just pattern matching. Used with a clinician in the loop.

Your health is the only agenda

Every recommendation is driven only by your context, and the latest science. We don’t earn commissions.

Your data, one purpose

Your data is private, secure, and used only to improve your health. We adhere to UK GDPR regulations.

Doctor-founded

The Calibre methodology was developed by Dr Reinhold Innerhofer, a clinician and sports scientist who spent his career at the intersection of preventative medicine and elite sport.

Built on Causal AI.

Purpose built AI grounded in cause and effect science, not pattern matching, that uncovers the ‘why’. Used responsibly and always with a clinician in the loop

Your health is the only agenda.

Every recommendation is driven only by your context, and the latest science. We don’t earn commissions.

Your data, one purpose.

Your data is private, secure, and used only to improve your health. We adhere to UK GDPR regulations.

Doctor-founded

The Calibre methodology was developed by Dr Reinhold Innerhofer, a clinician and sports scientist who spent his career at the intersection of preventative medicine and elite sport.

Built on Causal AI.

Purpose built AI grounded in cause and effect science, not pattern matching, that uncovers the ‘why’. Used responsibly and always with a clinician in the loop

Your health is the only agenda.

Every recommendation is driven only by your context, and the latest science. We don’t earn commissions.

Your data, one purpose.

Your data is private, secure, and used only to improve your health. We adhere to UK GDPR regulations.

Built by world-class doctors and scientists
Built by world-class doctors and scientists
Built by world-class doctors and scientists

© 2026 ABR Health Ventures Limited
WSM, Connect House · 133–137 Alexandra Road · Wimbledon · London SW19 7JY · United Kingdom

© 2026 ABR Health Ventures Limited
WSM, Connect House · 133–137 Alexandra Road · Wimbledon · London SW19 7JY · United Kingdom

© 2026 ABR Health Ventures Limited
WSM, Connect House · 133–137 Alexandra Road · Wimbledon · London SW19 7JY · United Kingdom