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- Login to my.atlassian.com, if you don't have an account please create a new one with your corporate email address. It is free.
- Click on "Marketplace" link at the top of the page. This will take you to marketplace.atlassian.com
- Search name of the app using the search box on the top of the page.
- Open the app's marketplace listing by clicking on its name or icon.
- Click on orange "Try it free" button. This will take you to my.atlassian.com.
- Select type of license.
- Accept terms.
- Copy the license text.
- Login to your Jira instance, navigate to "Manage apps".
- Expand the apps's entry and delete the old license and paste the new one.
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