Apps and digital tools targeted to teachers as “free” often come with underlying costs. Many tools used in the classroom, such as Canva, a graphic illustrator tool, or Wakelet, a digital curation app, require you to register for an account to use the tool. When you register for an account, you are usually asked to share personally identifiable information, like your name, email address, age, and/or gender. You will also be asked to review and accept the end-user license agreement or terms of service, which may involve giving away even more data, such as your IP address, device information, browser information, geolocation, and Internet browsing data.