Evernote is a versatile note-taking app with over 150 million users, offering features such as web clipping, image and PDF storage, audio recording, and reminders. It allows users to organize notes using notebooks, tags, and search options, making it easy to find specific information. The app also integrates with other apps, including Zapier, allowing for automation of tasks and workflows. Additionally, Evernote offers security features such as two-factor authentication, password protection, and data backup options. With a free plan available, users can try out the app before upgrading to the Plus or Premium plans for additional features.