Fogbugz, now known as Manuscript, is pretty good. It is somewhere between overly simple (Github Issues) and overly complicated (JIRA). I like it way better tha

Fogbugz, now known as Manuscript, is pretty good. It is somewhere between overly simple (Github Issues) and overly complicated (JIRA). I like it way better than JIRA (having said that, I haven't used JIRA in years). If you're a startup, you used to be able to get a two-user account for free -- not sure if they still do it, as Manuscript/Fogbugz got acquired by another company recently.