Update your page, send messages, check your progress, and keep current on all Walk news - all from the palm of your hand! You can also connect to Apple Health or Google Fit and complete activity challenges. Please note: The Walk to End Colon Cancer iPhone/Android application is only available to current registrants. If you haven't registered yet for this years event, please go to https://www.ccalliance.org/get-involved/walk-to-end-colon-cancer/find-an-event for an event near you.