Zube.io is pretty good. It extends Github issues. Devs who want to work purely in GitHub can use their existing flow and PMs get nice sprint boards and larger t

Zube.io is pretty good. It extends Github issues. Devs who want to work purely in GitHub can use their existing flow and PMs get nice sprint boards and larger tools like Epics in the Zube UI. I personally really liked it as a dev.