Yes, both GetResponse and Groupboss offer a Free Trial.
GetResponse is designed for Large Enterprises, Medium Business and Small Business.
Groupboss is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for GetResponse Starts at $15.58/Month when Billed Yearly whereas for Groupboss Starts at $99/Year.
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.
Some top alternatives to Groupboss includes Sync2CRM, Groupmail, CloudSocial, Posted, Qualified, Workvivo, Socialtribes, Blog To Social, Memo, Follab, Groupflows and IFTTT.