Neither Bitbucket nor Phase offers a free trial.
Bitbucket is designed for Large Enterprises, Medium Business and Small Business.
Phase is designed for and undefined.
Pricing for Bitbucket Starts at $3/User/Month whereas for Phase Starts at $12.00per user / month when Billed Yearly.
Some top alternatives to Bitbucket includes Assembla, GitLive, Codegiant, GitHub, GitLab, CircleCI, ChangeHub, XetHub and GetGit.
Some top alternatives to Phase includes and undefined.