rationTracker

Advice that knows what day it is

Daily guidance based on your goal and day type, with every claim backed by cited research.

Generic health tips ignore your goal, your plan, and what today looks like.

Start free on the webor get the iPhone app

Tips follow the day

A refeed day gets refeed guidance. A fasting day gets fasting guidance. Tips change with your calendar.

Backed, not vibes

Every tip links to a full article with citations. If we cannot back it, we do not ship it.

Common questions

Are the tips written by AI?

Tips and articles are grounded in our research database and reviewed by a human before publishing.