Blockstream introduced the final Lightning application within the "LApps Week" - the Lightning Jukebox. As the developers note, the application is more entertaining - it is intended to serve as a good example of how even such an archaic device can be upgraded with the help of Lightning Network technology.
Lightning Jukebox - a modern version of jukeboxe, which can usually be found in bars and other similar establishments. For a modest fee, visitors can choose and include their favorite song. The main differences between LApp and traditional mechanical devices are payment using the Lightning Charge system and QR code, and the terminal plays not only audio, but also video-music tracks are broadcasted from YouTube.
The developers note that the Lightning Jukebox is a great example of creating Lightning Charge applications. The program consists of only 128 lines of code and demonstrates how easy it is to integrate a system of micropayments based on Lightning. In addition, LApp provides an overview of how services can be monetized in the Lightning Network.