Tidepool Mobile is a companion notes app for Tidepool Web, a free web app, where you can see data from your insulin pump, continuous glucose monitor (CGM), and blood glucose meter, all in one place. Create your free Tidepool account at tidepool. Org/signup. As a notes app, Tidepool Mobile allows you to: Tag your CGM, pump, and blood glucose meter data with a note for context.