Yes, both Buffer and Curate offer a Free Trial.
Buffer is designed for Large Enterprises, Medium Business and Small Business.
Curate is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Buffer Starts at $5/Month when Billed Yearly whereas for Curate Starts at $15/Month when Billed Yearly.
Some top alternatives to Buffer includes Zoho Social, Crowdfire, SocialBee, Hootsuite, Planable, SocialMgr, Later, SocialBu, SocialOomph, Broadcast, InoSocial, CloudSocial, SocialHub and Postaside.
Some top alternatives to Curate includes Zoho Social, Crowdfire, SocialBee, SMhack, Planable, Later, SocialStats, MyHashtags, Hashtagify, CloudSocial, SocialHub, HipSocial by 500apps, Hashtag Generator, TrackMyHashtag and Sharemyinsights.