Yes, both Castr and Livestorm offer a Free Trial.
Castr is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Livestorm is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Castr Starts at $12.50/Month when Billed Yearly whereas for Livestorm Starts at $88/Month when Billed Yearly.
Some top alternatives to Castr includes Livestorm, Vimeo Livestream, BoxCast, Restream, Be.Live, StreamVoodoo, Streamster, Stream Club, Present Live, Streams and Resi.
Some top alternatives to Livestorm includes Zoom, Lifesize, Zoho Meeting, Zoom Video Webinar, enableX Webinar, BlueJeans Events, mmhmm and Zip Conferencing.