Not a speed checker, but a home coverage checker http://www.bbc.co.uk/news/technology-34968493
Dowloaded it from Google Play.
It doesn't give a lot of detail which for some of course is useful as it's less confusing. It tells me mine is fine upstairs , minimal delay , but I have lots of nearby WiFi channels active.
I prefer to use something like WiFi analyser by farproc which gives details of signal strengths and the channels used by all neighbouring WiFi and splits the results into 2.5 and 5Ghz.
whats it called?
Wifi Analyzer (https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer)!