WiFi Monitor

Before this app I would occasionally lose wifi, As I understand there are 14 channels you can set your router to, this app showed me the best channel to use resulting in a great steady signal.

Straight forward information.. very useful in checking the strength of your router.. also lets you see who else is on your wi fi band

I have tried this type of app before and every one of them has been off by a mile. I normally test at three different places and this app hit the nail on the head.

A great measurement tool if you're trying to set-up a wifi system with multiple APs, especially when they're all on the same SSID (just put them on different channels). The developer was incredibly responsive regarding some minor bugs, and had them fixed within a day.