Presentify - Turn your screen into a canvas when on video calls is a macOS menu bar app that helps you give better presentations, online classes, or video tutorials by letting you annotate any screen, highlight your cursor, and more.

You can annotate anything on the screen, be it images, videos, pdfs, code, you name it. Presentify is quite helpful for online teaching, recording video tutorials, giving a demo, working remotely, and the list goes on. This app is recommended and used by Harvard and MIT professors and featured by Apple three times until now.