Which is a better add on to integrate Jira with Bitbucket?

[Divya Bhandary]

Hi team,

We user Jira in my organization for Defect tracking. I am looking to extend this to Test Management Tool and also integrate with Bitbucket for CI/CD. The 2 add-ons that we are contemplating are Zephyr and TestRail. 

Which one would be better in integrating and cost (We are a team of 3)?

Thanks,

Divya