Yes, both Ackwire and InboxPro offer a Free Trial.
Ackwire is designed for Large Enterprises, Medium Business and Small Business.
InboxPro is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Ackwire Starts at $45/Month whereas for InboxPro Starts at $7.49/User/Month when Billed Yearly.
Some top alternatives to Ackwire includes Outgrow, ActiveCampaign, CleverTap, Moosend, Jumplead, Omnisend, LeadSquared Marketing Automation, LeadBI, Klaviyo, Net-Results, Odoo Marketing Automation, Zoho Marketing Automation, 7Engage and Structure Pie.
Some top alternatives to InboxPro includes GMass, AutoPitch, SmartWriter, Mixmax, Ghostwrite, Qualified, SmartReach.io, Workvivo, Sigmail, IFTTT and Consider.