IPScan32 is described as 'free IP scanner. It allows among others to retrieve information on remote machines through a clear and ergonomic interface' and is an app in the Network & Admin category. There are more than 10 alternatives to IPScan32 for a variety of platforms, including Windows, Mac, Linux, iPad and Android. The best alternative is Nmap, which is both free and Open Source. Other great apps like IPScan32 are Angry IP Scanner (Free, Open Source), Fing (Freemium), Zenmap (Free, Open Source) and Advanced IP Scanner (Free).
Dipiscan is a free IP scanner that allows you to remotely retrieve information about machines on your network using a clear and ergonomic interface (as well as a command-line mode) . It also includes wakeonlan/shutdown and other advanced features.
Umit: The Nmap Frontend: Umit was designed to accomodate and run more than one scan at time. Each scan is executed and shown inside a Scan Tab, which has a title and organize every information obtained in the scan result.
NmapSi4 is a complete Qt4-based Gui with the design goals to provide a complete nmap interface for Users, in order to menage all option of this power security net scanner and search services vulnerability.
Bopup Scanner is a LAN Scanner which resolves multiple network-specific parameters and displays all the active nodes/systems connected over the network along with useful information on the main interface.