Smule: Karaoke, Sing & Record is a popular mobile application that enables users to sing karaoke to their favorite songs, either alone or with friends. It offers an extensive library of songs across multiple genres, allowing users to practice singing, record performances, and share them with a community of music lovers. The app is available on both Android and iOS devices.

Smule provides both free and premium subscription options. The free version offers limited access to songs and features, while the premium version unlocks the full song library, removes advertisements, and includes additional features such as better audio effects and unlimited song access. Users can subscribe to Smule VIP for a monthly or yearly fee to enjoy these benefits.

To collaborate on Smule, users can join duet or group performances started by others or create their own and invite others to participate. The app supports real-time collaboration as well as asynchronous recordings, where users record their parts separately and others can join later. This feature makes it easy to connect with singers around the world.

Smule offers various audio effects including pitch correction, reverb, and different sound filters to improve vocal quality. Users can experiment with these effects to match the tone and style of the song they're singing, helping to produce a more professional and polished final recording.

Yes, Smule allows users to share their performances on social media platforms such as Facebook, Instagram, Twitter, and others. After recording, users can easily post their videos, enabling them to showcase their talent to a broader audience and connect with friends and followers outside the Smule community.