iKaraoke TunePrompter is a multimedia application designed for Mac users, enabling them to manually synchronize song lyrics with the singer's voice. The application provides a straightforward interface where users can search for lyrics and paste them into the program. This feature allows for a customized experience as users can select their preferred songs and ensure the lyrics match the melody accurately.

The synchronization process is user-friendly, requiring users to press the space bar each time they hear a word in the song, effectively marking the playback time for each lyric. After synchronizing the lyrics, users can export the final result to a video format, allowing them to view their work on various devices, including computers, iPods, and AppleTV. This functionality makes iKaraoke TunePrompter an appealing tool for karaoke enthusiasts and video creators.