Yes, both Groupboss and GetResponse offer a Free Trial.
Groupboss is designed for Individuals, Large Enterprises, Medium Business and Small Business.
GetResponse is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Groupboss Starts at $99/Year whereas for GetResponse Starts at $15.58/Month when Billed Yearly.
Some top alternatives to Groupboss includes Sync2CRM, Groupmail, CloudSocial, Posted, Qualified, Workvivo, Socialtribes, Blog To Social, Memo, Follab, Groupflows and IFTTT.
Some top alternatives to GetResponse includes Campaigner, Moosend, SMTP, ActiveCampaign, Omnisend, Constant Contact, MailChimp, Campaign Monitor, MailerLite, AWeber, ConvertKit, Elite Campaign, ClickFunnels, FlyerFunnel, SendFox and CloudFunnels.