If you're shooting video and need to synchronise your sound and video precisely, Clapperboard is for you. With just a single tap, the app will generate exactly timed sine waves in time with a clear screen flash, allowing you to ensure your recording is in perfect sync, every time.

- Generate from 1 to 60 time markers

- Display numbers and/or a visible clock face

- Optionally enable a high-pitched finish marker

- Perfect for movie professionals and home users alike