Mixmax
Yes, both InboxPro and Gist offer a Free Trial.
InboxPro is designed for Large Enterprises, Medium Business and Small Business.
Gist is designed for Large Enterprises, Medium Business and Small Business.
Pricing for InboxPro Starts at $7.49/User/Month when Billed Yearly whereas for Gist Starts at $29/Month.
Some top alternatives to InboxPro includes Apollo.io, AroundDeal, CrankWheel, ZoomInfo Engage, GMass, AutoPitch, SmartWriter, Mixmax, Ghostwrite, Qualified, SmartReach.io, Workvivo, Sigmail, IFTTT and Consider.
Some top alternatives to Gist includes SalesCRM, SimpleCRM, CRM.me, Shape Software, SalesInvite, Salesmachine, Serviceform, Qualified, Workvivo, M Intelligence, Sociocs and Consider.