One Second: Daily Movie Diary is an innovative multimedia application designed for iPhone users who wish to document their lives in short video snippets. The app allows users to create a compilation of their daily experiences by capturing brief 1, 2, or 3 second video clips. Users can enrich their movies with music soundtracks, add text, location, and date to each clip, and even fill in empty days with alternative video clips. Friendly reminders encourage daily recording, ensuring that no moment goes undocumented.

The app supports unlimited clips and offers the option to let the app randomly select clips for users. Sharing is made easy with integration to various social media platforms, including Facebook. While the app is free to use, there is an upgrade available to Pro Monthly or Yearly subscriptions, granting access to enhanced features. Overall, One Second: Daily Movie Diary is a practical tool for anyone looking to create memorable time-lapse videos of their life.