About Uphill
Built to help people live healthier for longer. Grounded in published science, with no ads and nothing sold.
Published science.
The test and the plan come from peer-reviewed studies, cited on every page where a claim is made.
Your data stays on your phone.
No account, no sign-in, no server. Uphill sends nothing to us, so there is nothing for us to see.
No ads, ever.
No analytics, no trackers and no code from other companies. Uphill is paid for by the people who choose Pro.
Why I built Uphill
I'm in my late 40s and I'm not an athlete. Where I live, it is often too hot, too humid or too wet to exercise outdoors. I wanted to know my VO2 max and improve it. So I built Uphill: a test based on validated science that I can do on a treadmill at a walk, and a personalised plan that adapts after every session. I built it for myself first. Now it's yours too.
Colin
Uphill is made by Colin Nathan, an independent developer. Write to [email protected].
Next
Datum
Your bloodwork measured against your own usual, so real change shows up while the lab still says normal. Coming early 2027.