Total Network Inventory: Professional PC audit and network inventory management software - fits best for a for companies of all sizes. Free for 60 days.
Network Inventory Advisor - Network Inventory Advisor audits all network software and hardware simply and efficiently
iKeyMonitor - iKeyMonitor is a mobile app for both iPhone and Android devices that with parental control capabilities and phone monitoring features.
Lansweeper - Lansweeper discovers Windows, Linux and Mac machines in your network.
XNSPY - XNSPY is the world’s most trusted cell phone spy software to monitor any smartphone and tablet remotely. It works on a range of devices including Android phones, Android tablets, iPhones and iPads.
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
Spyera - Spyera is the name of an undetectable tracking and monitoring application that offer its users the comprehensive set of tools for remote monitoring and tracking of any smartphone.