EBay
Yes, both Userback and Marker.io offer a Free Trial.
Userback is designed for Individuals, Freelancers, Medium Business and Small Business.
Marker.io is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Userback begins at $14/Month when Billed Yearly, while pricing details for Marker.io are unavailable.
Some top alternatives to Userback includes Backlogs, Backlog, ReportBugz, Buglog, Usersnap, Ybug, Bug-Track.com, Disbug, Feedback Monkey and Toybox.
Some top alternatives to Marker.io includes The Bug Squasher, BugHerd, Buglog, TrackJS, Ybug, BugHost, DebugMe, Bug-Track.com, Disbug and Toybox.
