HD TV App is a free lifestyle application offered by HD PLUS GmbH for Android 10 and higher. The app provides access to 26 private HD channels and 3 UHD channels, along with the HD+ comfort function, which includes several features. With the Neustart feature, users can easily restart selected shows from the beginning, while the Mediatheken feature offers convenient access to numerous shows for up to 7 days after they are broadcasted. Additionally, the UHD-Switch feature allows users to instantly know if the current show is available in UHD.

Overall, HD TV App is a great application for those who want to enjoy high-quality TV channels and features on their Android devices. With the app, users can enjoy the entire HD+ offer for free for six months without registration. However, it is important to note that this offer is only available for Sony GoogleTV models released from 2021.