Yes, both Feedalpha and RSS offer a Free Trial.
Feedalpha is designed for Large Enterprises, Medium Business and Small Business.
RSS is designed for Individuals, Medium Business and Small Business.
Pricing for Feedalpha Starts at $24/Month whereas for RSS Starts at $9.99.
Some top alternatives to Feedalpha includes Zoho Social, Crowdfire, SocialBee, Buffer, Planable, Later, Spredfast, Broadcast, Social Mako, CloudSocial, SocialHub, Amplifr, SocialGest, Send Social Media and SocialHuge.
Some top alternatives to RSS includes Podsite, Podsqueeze, PodBean, Podcast.co, Buzzsprout, AudioHarvest, Qualified, Workvivo, Sounder, Podcastpage, Casted and SupaPass.