Restreaming - Using the restream feature you can stream to multiple social platforms including Custom RTMP servers. The only option you get in the Restreaming module is to add social platforms and real-time toggling of platforms.
Live Streaming - If you create a Live Stream in Castr, you can get your embed player along with many other features like Cloud Recording, Adaptive Bitrate Streaming, etc.
Using the player embed you can integrate the player in your website, not just that we provide you with HLS URL of your stream which you can use in Mobile App, Roku App, etc.
You can check more about our live stream offering here - https://castr.io/livestreaming.
If you are still confused, then please contact us :)