Yes, both Submittable and buzzbomb.com offer a Free Trial.
Submittable is designed for Large Enterprises, Medium Business and Small Business.
buzzbomb.com is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Submittable Starts at $84/Month whereas for buzzbomb.com Starts at $49/Month.
Some top alternatives to Submittable includes SocialMailer, buzzbomb.com, Zoomph, CloudSocial, Astute Social, Lately, Socialshaker, SocialBook, Qualified, Workvivo, Approved Social and Sociocs.
Some top alternatives to buzzbomb.com includes Post For Rent, TapInfluence, Upfluence, HYPR, BuzzGuru, Hubble, SocialBook, CreatorDB and Influence Hero.