ownticket
Easy to use ticket system for internal workflow
If you want to get/give some work to your colleagues/manager/... with easy web Interface and using out of the box - then this is your software.
Use bootstrap framework --> usabel on all browsers incl. mobile devices.
It is designed for companys (or privat) internal workflows - no external user access at the moment - no external ticket access (without a given user).
Tickets with subtickets and many more features :-)