Network Radar is described as 'IP scanner and network monitoring tool for Mac' and is a IP Scanner in the Network & Admin category. There are more than 10 alternatives to Network Radar for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is Nmap, which is both free and Open Source. Other great apps like Network Radar are Angry IP Scanner (Free, Open Source), Fing (Freemium), Advanced IP Scanner (Free) and Port Authority (Free, Open Source).
Fing helps you understand most of your home network. See all the devices connected to your Wi-Fi, run network scanners, monitor your Internet speed, know your security level, set automated vulnerability checks, and much more.
Reliable and free network scanner to analyse LAN. The program shows all network devices, gives you access to shared folders, provides remote control of computers (via RDP and Radmin), and can even remotely switch computers off. It is easy to use and runs as a portable edition.
A handy systems and security-focused tool, Port Authority is a very fast Android port scanner. Port Authority also allows you to quickly discover hosts on your network and will display useful network information about your device and other hosts.
Advanced Port Scanner is a fast and free software for port scanning. It will allow you to quickly find all open ports (TCP and UDP) and detect versions of programs running on them. The utility includes many features simplifying network management.
Rumble is a network discovery platform that enumerates the network topology, identifies devices, and creates an asset inventory. Rumble runs discovery scans via a locally installed agent or using the standalone Rumble Scanner on the command-line.
The IPPINGER is an application for checking a host or multiple hosts periodically. It can check IPs, websites and also ports (if are open). It can be configured to notify by email or Windows Notification when a host is down.