App

What the app does

The app is the iPhone companion to this website: a personal wellness tool that helps you see whether a change you make actually shows up in your own day-to-day data. It reads the wellness and activity signals your wearable already records — things like sleep, heart-rate patterns, and movement — and compares them against your own personal baseline.

The idea is simple. When you try something new, it can be hard to tell whether it made a real difference or whether it just felt that way. The app helps you answer that question with your own data, rather than guessing.

How it reads your data

The app does not gather anything new on its own. With your permission, it works from the data your wearable has already recorded, and looks at how those signals move before and after a change you choose to try. It reads and compares; it does not pass judgment on your health. The point is to show you what shifted, in plain terms, so you can notice patterns in your own life.

How it works with the website

Every experiment in the app is paired with the methodology and library on this website. When the app shows you a reading, you can follow it back to a plain-language explanation of the metric, the intervention, and how the comparison was made. The app surfaces the question; the library explains the thinking behind it.

Personal wellness, framed honestly

Results in the app are framed as a personal exploration, not a verdict about your health. It works from your own baseline rather than population averages, and it hands the conclusions back to you. The app is a wellness tool, not a medical device, and it is here to help you explore your own data with curiosity and care.