Hi Gianni / @GDR1989 , the native Jira integration is quite opinionated. It’s made to cover the most basic use cases but doesn’t give you a lot of flexibility. It’s also free.
While Unito won’t calculate the time spent in a status for you, it will sync the statuses perfectly (live) so both Asana and Jira will be able to report on that time spent equally. This however won’t work for the initial sync that brings in historical tasks/issues (those will start in their current status).
If you have the time spent in a status already calculated in a custom field though, Unito can also sync that across.