ReportBugz is described as 'Bug Reporting Made Easy' and is an app in the Development category. There are five alternatives to ReportBugz for a variety of platforms, including Online / Web-based, Mac, Windows, Linux and Chrome OS. The best alternative is Usersnap. It's not free, so if you're looking for a free alternative, you could try Timeline.io or ReproNow. Other great apps like ReportBugz are BugReplay (Free Personal) and Bug Snapshot (Paid).
Bug Snapshot is the best way to get quality user feedback, available as a simple plugin or widget for your site. All plans offer all you can eat user feedback, with unlimited screenshots, pages views and feedback.