Fing is a free network scanner for mobile phone.

SoftPerfect Network Scanner is a fast universal IPv4/IPv6 scanner with an extensive range of options and advanced features.

Open Computers and Software Inventory Next Generation is an asset management and deployment solution.

NetCrunch is a Windows Server–based network monitoring tool that boasts high performance and impressive scalability even in a single-server deployment.

InvGate Assets has a solid feature set when it comes to IT asset management, adequately covering both hardware and software.