Yes, both GetResponse and Proof offer a Free Trial.
GetResponse is designed for Large Enterprises, Medium Business and Small Business.
Proof is designed for Medium Business and Small Business.
Pricing for GetResponse Starts at $15.58/Month when Billed Yearly whereas for Proof Starts at $26/Month when Billed Yearly.
Some top alternatives to GetResponse includes Pipedrive, Campaigner, Moosend, SMTP, ActiveCampaign, Omnisend, Constant Contact, MailChimp, Campaign Monitor, MailerLite, AWeber, ConvertKit, Elite Campaign, ClickFunnels, FlyerFunnel, SendFox and CloudFunnels.
Some top alternatives to Proof includes and undefined.