https://exalate.com/Jira/Sync-Tool
赞助Synchronize multiple Jira instances or Jira projects at the flip of a switch. The most complete & flexible synchronization tool on the planet. Find out more here!
Real-time Synchronization · Start With The Free Plan · Chat Support Available · Read Blog
Types: Jira Cloud, Jira Server, Jira Data Center, Integration with Jira, Easy Jira sync