eToolz is described as 'includes some of the most important network tools like NS-Lookup, Ping, TraceRoute and Whois. It can check e-mail addresses and shows domain information entries' and is a Network Analyzer in the Network & Admin category. There are nine alternatives to eToolz for a variety of platforms, including Windows, Linux, Android, Mac and iPhone. The best alternative is Nmap, which is both free and Open Source. Other great apps like eToolz are Fing (Freemium), Port Authority (Free, Open Source), Advanced Port Scanner (Free) and SoftPerfect Network Scanner (Paid).
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.
HoverIP is a comprehensive network software solution that shows you adapter configuration and lets you perform various IP tasks. This isn't the kind of tool aimed at rookies, but more at professional users who know what's that a “ping” or a “routing table”.