AXAEM (APPX-based Archives Enterprise Manager)
Software is open source; however APPX Utility is a proprietary software dependency. (APPX Utility was used to build AXAEM and it is required to run the application.) The software is fully vendor supported. This is a system, but can also be a service hosted in the cloud. Notes on Cost: A fully-functional promotional version for a single user license of the APPX Utility is free. For multiple users there is a cost per concurrent user. AXAEM itself is free. First account is free.
UTAH State Archives: Information including documentation and user videos available here: http://archives.utah.gov/axaem/axaem.html