I noticed that there is no way to create issues or find issues from service desk projects in the jira server mobile app. Service desk seems to be possible with the cloud version of the app - I don't see the reason why this did not transition to the server app?
thanks, I voted for that now.
I don't quite understand why service desk on the app is working for cloud but not for server - where is the "stability issue" ?!?
May be you can ask the atlassian team through this discussion
https://community.atlassian.com/t5/Jira-discussions/The-Jira-Server-Mobile-App-is-here/td-p/1154545