FRITZ!App WLAN is described as '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' and is an app in the Network & Admin category. There are eight alternatives to FRITZ!App WLAN for Android, Android Tablet, Mac and Windows. The best alternative is Wifi Analyzer, which is free. Other great apps like FRITZ!App WLAN are WiFi Analyzer (Free, Open Source), NetSpot (Freemium), Wifiner - WiFi Analyzer (Paid) and WiFi Scanner (Paid).
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! App Permissions (from Google Play) Version 3.8.
Easily analyze your Wi-Fi and see the issues preventing you from having a stable and fast connection. You can run a comprehensive scan of your wireless network, get an interactive color-coded heatmap, and see the "dead" zones clearly.
A 802.11 wireless scanner and connection manager for Mac OS X. WiFi Scanner will detect access points and clients in ad-hoc mode if the SSID is being broadcasted. It can be used for wireless site surveys, wireless discovery, and to connect to WiFi networks.
WiFi Warden lets you see frequency, channel, modem manufacturer, encryption, security,distance to the router, power, name and Mac address of wireless access points around you and show some information about connected devices to your network.