Flip Clock is a free, minimalist digital desktop clock widget for iPhones. It has a range of features that include displaying the time in seconds on the dynamic island, full-screen display of time and date, and support for both 12 and 24-hour modes. Additionally, it has a smart alarm clock that can automatically adjust the volume, multiple clock themes, and offers a timer and stopwatch with countdown capabilities.

One unique feature of Flip Clock is the Pomodoro Technique, which helps users focus on work and study. It also supports playing background white noise for a more calming environment. The app offers a Today widget that displays the time in seconds, home screen and lock screen clock widget display with seconds, and a calendar and clock widget display. Furthermore, it allows users to display personalized signatures on the lock screen and has hourly chime and hourly voice timekeeping. Lastly, it can be set to automatically launch when charging, as a screensaver.