Invite only

Self Observed

A personal tracker for self-experimentation. Log how you feel and what you do, then look back to see what actually works for you — not calorie counting, not diagnosis.

Self Observed is currently invite-only. If you've been invited, log in or sign up with the email you were invited on.

Fasting

Start and end fasts in a tap, plan targets, and compare each fast to what you intended.

Energy, brain fog & hunger

One-tap check-ins on a 1–9 scale, so logging takes seconds.

Menstrual cycle

Record period days and flow, and see how they line up with everything else.