Yes, both GetResponse and RetargetKit offer a Free Trial.
GetResponse is designed for Large Enterprises, Medium Business and Small Business.
RetargetKit is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GetResponse Starts at $15.58/Month when Billed Yearly whereas for RetargetKit Starts at $7/Month when Billed Yearly.
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 RetargetKit includes Bitly, RocketLink, Rebrandly, ShortSwitch, Cutt.ly, SHORBY, Short.io, Switchy, Linkjoy, MyLinks On Acalytica and Smartlnks.com.