Health Index

Beta · invite only

Request an invite

Invites go out in small batches and there's no fixed timeline. This is a beta run by one person, not a launch queue with a countdown clock and a hype video.

Your email is used to send you an invite, and to reply if you asked something. It sits on our server — which is more than can be said for anything you do in the app. See the privacy policy. Not medical advice.

What you're signing up for

  • Rough edges. It's a beta. Things will break, and the quickest route to them being fixed is you saying so — there's a feedback option built into the app for exactly that.
  • No cost. Free during the beta. An email address is the only thing you'll be asked for.
  • No obligation. Try it, decide it isn't for you, and that's a perfectly good outcome. Nothing will chase you about it.
  • Your data stays yours. Entries live on your device. You can export a full backup whenever you like, and the export is built to be restored from rather than just downloaded and forgotten.

Before you ask

The model page explains the scoring properly, curves included, and the FAQ covers what comes up most. If you want to know exactly what sits on a server and what doesn't, that's the privacy policy — the short version being that your entries don't.