UCheck - UCheck is a tool that will help you to keep your software updated.
NetBox - NetBox is an open source web application designed to help manage and document computer networks. NetBox was developed specifically to address the needs of network and infrastructure engineers.
Avira Software Updater - Application that searches updates for software on your computer
Snipe-IT - Managing assets with a Google doc or a shared Excel spreadsheet is more common than you think.
HEIMDAL FREE - HEIMDAL FREE is an application to automate your device software updates in order to improve your security.
Zabbix - Track, record, alert and visualize performance and availability of IT resources