Nova is an open-source video player that is designed for tablets, phones, and AndroidTV devices. It is a universal player that can play videos from various sources, including your computer, server, NAS, and external USB storage. The player also has an automatic online retrieval feature that retrieves movie and TV show descriptions with posters and backdrops. Additionally, it has an integrated subtitle download feature that supports various subtitle file types.

Nova is considered the best player because it has hardware-accelerated video decoding for most devices and video formats. It also supports multi-audio tracks and multi-subtitles. The player supports various file formats, including MKV, MP4, AVI, WMV, and FLV. It also supports various subtitle file types, including SRT, SUB, ASS, and SMI.

Nova is TV-friendly and has a dedicated "leanback" user interface for Android TV. It also has AC3/DTS passthrough on supported hardware, 3D support with side-by-side and top-bottom formats playback for 3D TVs, and an audio boost mode to increase the volume level. Additionally, it has a night mode to dynamically adjust the volume level.

Nova allows you to browse the way you want. It has instant access to recently added and recently played videos, and you can browse movies by name, genre, year, duration, and rating. You can also browse TV shows by seasons, and folder browsing is supported. The player also has various features, including multi-device network video resume, NFO metadata processing for descriptions and posters, scheduled rescan of your network content, and private mode to temporarily disable playback history recording.

In case you have an issue or a request about this app, you can check their Reddit support community. If you experience any issue with video hardware decoding, you can force software decoding in the application preferences. You are also welcome to contribute to the translation of the application. Nova stands for open-source video player.