Wifiner - WiFi Analyzer Alternatives

Wifi Analyzer is a handy tool which helps you to select a better channel for your wireless router. It turns you android phone into a handy Wi-Fi analyzer!

NetSpot is a simple and accessible wireless survey tool, which allows collecting, visualizing and analyzing Wi-Fi data.

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.

WiFi Explorer is a tool to scan, find, and troubleshoot wireless networks. It can be used to quickly identify channel conflicts, overlapping and other factors (e.g. configuration issues) that may be affecting the connectivity and/or performance of your wireless network in homes...

iStumbler is the leading wireless discovery tool for Mac OS X, providing plugins for finding AirPort networks, Bluetooth devices and Bonjour services with your Mac.

FRITZ!App WLAN makes it quick and easy to connect your Android or iOS device to wireless routers such as the FRITZ!Box. The app also offers a detailed overview of nearby wireless networks.

Use AirPort Utility to manage your Wi-Fi network and AirPort base stations, including AirPort Express, AirPort Extreme, and AirPort Time Capsule — right from your iPad, iPhone, or iPod touch. See a graphical overview of your Wi-Fi network and devices.

Kismon is GUI client for kismet (wireless scanner/sniffer/monitor) with several features:

Oka WiFi Speed Test is an essential diagnostic tool for you to test your network speed and check the signal strength, it will include all the information you need.

Assess channel usage of neighboring routers / access points and get a desktop alert if your active channel is not optimal (has more than 1 user on it, other than you). Troubleshoot your wifi without lifting a finger!.