Bitbucket allows everyone with a free account an unlimited number of public and private repositories. You can grant as many users as you want access to your public repositories. Bitbucket plans restrict the number of users with access to your private repositories. Users with permissions such as write or admin on public repos don't count. With a free plan, you get up to five users, including yourself, with access to your private repositories.

After adding users to your account, you should review your plan and note which users "count" toward it. To view your plan, do the following:

• Choose avatar > Account.
• Choose Plans and billing from the left hand panel (or scroll to the page bottom).
  The system displays your current plan status:

Scroll down the page and review the users with access:

In this example, four users have access: B userbb, tutorials (the current account), atlassian_tutorial, and Jonathan Docklovic. Your plan should show the user you granted access to previously. How would your accounts Plans and billing appear if you changebb101repo from private to public? Go ahead and try it