WiFi speeds fluctuate heavily, e.g. workdays vs weekdays, lunch hours vs mornings vs nights, etc.<p>So as good looking as this app is, the real challenge is with the accuracy of its data and keeping it from getting stale. Not sure if the OP realizes this, but it's a 24/7 grind that also requires a sizable userbase.<p>It's not a bad idea in its core, but this belongs in the OS itself <i>and</i> it should also be On by default to manage to collect enough data to be useful and to keep it current. I doubt that an opt-in model, especially in a form of an installable app, would work well enough to produce any reasonable coverage.