Feasibility of a Colorectal Cancer Screening Web App in Primary Care Patients

The goal of this clinical trial is to test the feasibility of a web app about colorectal cancer screening in patients with an upcoming primary care appointment. The main questions it aims to answer are: * Among patients who use the web app, what proportion will request a colorectal cancer screening test via the program? * How many patients will respond to a text message intervention to use the web app? Participants will receive a text message informing them of the value of colorectal cancer screening, and inviting them to click a hyperlink to learn more. The hyperlink will take participants to the web app. The web app: 1) asks questions and use algorithms to determine if routine colorectal cancer screening is needed, and 2) if screening is indicated, shows a brief educational video about colorectal cancer screening and allows participants to request a screening test via the program. Researchers will compare four different versions of the text message invitation to see if some messages result in higher program completion rates than others.