See a crisis coming before it builds.
CrisisCompass builds free tools for people living with sickle cell disease. Our new app, Tide, helps you log symptoms, spot your patterns, and walk into every appointment with real data.
How a red blood cell becomes a sickle.
Sickle cell disease starts with one change in one gene. Watch what happens inside a single cell when it gives up its oxygen. Drag the slider or tap a step.
When sickled cells jam, blood stops flowing.
Healthy cells fold and slip through narrow vessels. Sickled cells snag, pile up, and block blood from reaching tissue. That blockage is a vaso-occlusive crisis, the sudden, severe pain people with SCD know too well.
Inside a blood vessel
Meet Tide.
Tide is our new app for sickle cell disease. Crises do not come out of nowhere. Sleep, water, stress, and weather all move the tide. Tide keeps track so you can see the wave forming and act early.
Log symptoms in seconds Live
Slide to rate pain, stress, sleep, and water. Add pain locations, symptoms, and triggers.
Private notes Live
Write down how a day went, questions for your doctor, or what helped during a crisis.
Crisis risk insights Soon
A machine learning model that reads your logs and flags when your risk of a crisis is climbing.
SCD Agent Soon
Ask questions about sickle cell disease anytime and get clear, sourced answers.
Pain rose on days you drank less water. Keep logging to see if the pattern holds.
Under a minute a day.
Create a free account
Sign up with your email. No cost, no ads, no selling your data.
Log how you feel
Rate your pain and the things that affect it. Good days count too, because they show what is working.
Bring your patterns to care
Show your hematologist real history instead of trying to remember the last three months on the spot.
A compass for living with sickle cell disease.
CrisisCompass is an organization building free, privacy first technology for people living with sickle cell disease and the people who care for them.
SCD affects millions of people worldwide, yet the tools built for it lag far behind other conditions. We want every patient to understand their own body, recognize a crisis early, and get heard when they need care. Tide is our first step.
Patient first
Every feature starts with one question: does this make a hard day easier?
Private by default
Health data is personal. Your logs are tied to your account and nobody else's.
Free to use
Cost should never stand between a patient and understanding their own health.
Start reading your own tide today.
Free account. Takes less than a minute to set up.