I’m using Infuse as a player on my Apple TV (4th gen) for TV recordings made by Plex on my Synology NAS.
These are the benefits of the Pro version advertised on Firecore’s website:
Play more videos
Enjoy even more video formats (up to 4K Ultra-HD) and save yourself from hours of file conversions.
HD quality audio
Hear every detail with added support for 24-bit Dolby TrueHD and DTS-HD MA audio.
AirPlay & Google Cast
Stream videos to the big screen, with surround sound and subtitles, via AirPlay and Google Cast.
Stay in sync
Keep your library, playback progress, and watched history in sync with other devices.
Stream videos directly from cloud file services like Dropbox, Google Drive, OneDrive, and others.
Updates for life
Get access to great new features in all future updates - even major releases like v6, v7, etc… with a Pro subscription.
Play more videos - don’t think I need this as I always play just TS files from Plex
HD quality audio - will that make any difference to me when I only play TV recordings from Plex?
AirPlay & Google Cast - don’t need that
Stay in sync - don’t need that
Cloud streaming - don’t need that
Updates for life - that’s the strongest argument for me for Pro that I can see, at the moment
Will the Pro version improve the integration with Plex in any way?
Will the Pro version be better in handling metadata? I noticed some thumbnails don’t show up in Infuse even though they are there in Plex (see also missing thumbnails for some Plex content)