Backlog offers Free Trial, but Zipy does not.
Backlog is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zipy is designed for Freelancers, Medium Business and Small Business.
Pricing for Backlog Starts at $29.16/Month when Billed Yearly whereas for Zipy Starts at $29/Month when Billed Yearly.
Some top alternatives to Backlog includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Wrike, TeamGantt, FogBugz, Teamwork, ProjectManager.com, Trackboard, TaskBranch, Quick Base, TestRail, Height and Project Insight.
Some top alternatives to Zipy includes Sentry, Zoho BugTracker, ReportBugz, Marker.io, zipBoard, TrackJS, Ybug, BugReplay, Disbug and Toybox.