: The app can automatically transcode incompatible video and audio formats (such as MKV, AVI, and FLAC) on the fly so they can play on devices like Chromecast that don't natively support them.
A primary feature of the BubbleUPnP Pro version is , which removes the restrictions found in the free version that limit the number of tracks you can play to external renderers per app launch.
Key capabilities of the latest version (v4.6.3 as of early 2026) include:
: It allows for downloading subtitles from OpenSubtitles, extracting embedded subtitles, and customizing their appearance on Chromecast.
: It can stream media to a wide range of devices, including Smart TVs (DLNA/Samsung/LG/etc.), Chromecast , Amazon Fire TV , Xbox , and PlayStation .