When comparing Syncthing vs Plex, the Slant community recommends Syncthing for most people. In the question“What are the best ways to sync music to Android phone?” Syncthing is ranked 1st while Plex is ranked 2nd. The most important reason people chose Syncthing is:
Licensed under [MIT](https://github.com/calmh/syncthing/blob/master/LICENSE).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open-source
Licensed under MIT.
Pro Cross-platform
Available for Linux, OS X and Windows and web.
Pro Works out of the box
Requires no configuration to protect your privacy; it just works.
Pro Reasonably active community forum
Pro Unofficial Android client available
An Android app was created by a third-party.
Pro Supported on many devices
It's pretty hard to find a NAS or STB that doesn't support Plex.
Pro Accessible via web browser
A modern web browser is enough to get everything Plex has to offer.
Pro Added lots of media databases
Metadata for media files will automatically be updated by using media databases. This provides posters, movie trailers, descriptions, information about actors, etc.
Cons
Con In beta
Although mostly stable, such stability is not guaranteed, and support is only community driven. Caution advised.
Con Needs registration
You need a PLEX account even if you use it on your local LAN.
Con Proprietary software
Unfree software.
Con No gapless audio-playback
Plex still does not support gapless playback of audio files such as mp3 or FLAC.
Con Playback error: This server is not powerful enough to convert video
More hardware requirements on Plex due to a useless/non-intuitive transcoder. When using lower spec hardware (eg SBC) Plex will not transcode or play HD+ videos. When compared to other packages (eg Jellyfin which transcodes nicely using FFMeg), Plex falls short on video playback and transcode settings to get videos to play (fastest/lightest option still fails).