Nutty is described as 'A simple application made for elementary OS to provide essential information on network related aspects. The information presented in as the following tabs' and is an app in the Network & Admin category. There are three alternatives to Nutty for a variety of platforms, including Linux, Mac, Windows, Android and Android Tablet. The best alternative is Nmap, which is both free and Open Source. Other great apps like Nutty are Kismet (Free) and Who Use My WiFi? (Free).
Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system. Kismet will work with any wireless card which supports raw monitoring (rfmon) mode, and (with appropriate hardware) can sniff 802.11b, 802.11a, 802.11g, and 802.11n traffic.