Caprine is a desktop Facebook Messenger app for macOS, Windows and Linux that includes a number unique features that differentiate it from the official app. With highlights, such as a dark theme, a vibrant theme, keyboard shortcuts, silent updates, custom text sizes and a focus on privacy, Caprine offers users an alternative to the standard application designed by Facebook. For those who desire a bit more personalization and customizability, Caprine is an alternative that includes several options, not the least of which is its focus on privacy, unlike the official messenger app.