Yes, both ShareSpring and Aggreto offer a Free Trial.
ShareSpring is designed for Large Enterprises, Medium Business and Small Business.
Aggreto is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for ShareSpring Starts at $50/Month whereas for Aggreto Starts at $29/Month when Billed Yearly.
Some top alternatives to ShareSpring includes Zoho Social, Crowdfire, SocialBee, Social Media Wall, Buffer, Planable, Later, SocialBu, Aggreto, Broadcast, Social Mako, CloudSocial, SocialHub, Send Social Media and Posted.
Some top alternatives to Aggreto includes Zoho Social, Crowdfire, SocialBee, Buffer, Hootsuite, Planable, SocialMgr, Later, Broadcast, CloudSocial, SocialHub, Send Social Media, Sociality.io, Posted and ArchiveSocial.