We used jira for a while and I just loaded it into a fluid instance.

http://fluidapp.com

It is an app that lets you isolate a website into its own browser.


I'm also amazed that so little alternatives exist for this. My problem is tracking the time, not the issues boards, so i'm building a plain simple tool for that. The way it works is when you finish a task you open the app from the status bar and write some details of what you've done, and that's all. You will have this list synced on your iphone so you can read them next day in the scrum meeting. When you feel like you can transfer the tasks to jira timesheet but i'm working on automating this. Take it from here, might not be free forever https://github.com/ralcr/Jira-Logger