There are many live billiards applications to choose from. Here are some common and popular applications:

1. ESPN: ESPN is an application that provides live broadcasts of a variety of sports. program, which includes billiards competition.

2. SnookerLivePro: This is an application for snooker enthusiasts, providing real-time scores, live video and game information.

3. Eurosport Player: Eurosport Player is an application that covers a wide range of sports, including live billiards matches.

4. MatchroomPool: MatchroomPool is a live billiards application provided by MatchroomSport, mainly focusing on 9-ball games. Therefore, if you want to watch live billiards, you can use the above apps to watch and enjoy the experience. Please note that your specific app selection may depend on your location and the type of pool play you prefer. It may be recommended that you search the app store and check user reviews and features to choose the app that suits you best.