Free: Open source with Apache license. No plans. No limits. You can install it in your own servers.

uBugtrack is described as 'Lightweight, smart, elegant and powerful app to manage your tasks and issues' and is a Issue Tracking system in the development category. There are more than 50 alternatives to uBugtrack, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and SaaS apps. The best uBugtrack alternative is Trello, which is free. Other great sites and apps similar to uBugtrack are Redmine, JIRA, Trac and Launchpad.
Free: Open source with Apache license. No plans. No limits. You can install it in your own servers.

EngineerOffice is time tracking and project management software made by engineers, for engineers. It eases your unique demands of managing projects and people with an intuitive, streamlined design that works beautifully across your desktop, iPhone®, iPad® or Android...



Easily centralize data, resources, and teams to track anything, automate everything, and integrate to your existing systems to make work flow, all without a single line of code. Start small, scale fast.



MantisHub offers a hassle-free turn-key solution to Mantis Bug Tracker customers. Backed by a support team with years of experience building MantisBT.
Boto is a simple bug tracking software with an intuitive user interface and instinctive workflow. Boto is the tool of choice for those who want to do their work efficiently and effectively.

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Sprintly makes it easy for startups and agencies to collaborate on software projects. Sprintly is designed to be intuitive to use without training or configuration so teams can be up and running in seconds.