Pocket is a web-based service that allows users to save articles and videos from the internet for later reading. It can be accessed through a desktop application, mobile apps, or by using browser extensions. Users can sign up for a free account and set up their devices to start saving articles. The app offers features such as font choices, unlimited highlights, and organization tools like archiving and tagging. Pocket also integrates with thousands of other apps through Zapier, allowing users to automate tasks and create custom workflows.