You can install the Exalate app from your Jira administration panel or directly from the marketplace.
To install Exalate from the marketplace, follow the steps below:
1. Search for the app at the marketplace
2. Click Try it Free
3. Select Cloud as your hosting type and click Start free trial
4. Choose a site to install the app and click Start free trial
After this step, you will be redirected to your Jira dashboard.
5. Confirm the free trial
6. You're all set!
Check Licensing and pricing for more details.