JIRA, Trello, Redmine, Greenshot, OpenProject, ClickUp, Focalboard, Taiga.io, ManageEngine ServiceDesk Plus, Wekan, Commenty, Zenkit, Quire, Notable, Usersnap, Userback, Timeline.io, Agilefant, Red Pen, Support Incident Tracker, Filestage, MantisHub, Mopinion, The Bug Genie, Redmine CRM, Kunagi, Visualtip, Telerik TeamPulse, proofHQ, TrackDuck, BugReplay, Pangolin, FeaturePeek, Codendi, Vermis, qTrace, Lean Testing, Bugyard, W3Dart, Sprintly, Flowcast, 16bugs, Colabolo, Cereo, InSite Feedback, tasksIT, ChiliProject, Bugify, DebugMe, Webscope are some alternatives to ZipBoard.