IObit Software Updater
6.0#12 in software update toolsFrom $29.99 a yearFree planWindows
VisitIt suits Windows users who want scheduled scans, silent installation, or bulk updating. The free plan is for people comfortable with two updates per day; PRO covers three PCs.
Version Tracker suits Mac users who want to scan installed applications, check updates, and keep software inventories. Its Family plan is described for families and small teams and covers up to five Macs.