CA3LE. And you should also mention that most of the OOKLA based test sites' speed tests won't run on an iOS device because the tests require Flash (the memory and battery hog technology that's not allowed on iOS devices). So kudos for you having iOS compatible testing. And although Speedtest.org now supports iOS/Safari, the results are way off. They even have a disclaimer:
"Warning
For best testing experience and accuracy, Broadband Speed Checker requires at least version 8 of Flash. Please update your client by clicking here."
And when you try the support Contact Us on Speedtest.org, you get:
"Not Found. The requested URL /contact/ was not found on this server."
Plus you can't choose a server like you can on TestMy.
There is an OOKLA Speedtest app for iOS that allows you to pick servers, and the results trend kind of like the results I get here on TestMy, but the UI and the results displays and overall functionality of the app is orders of magnitude less than this site.
For iOS device users, nobody else that I've found is even in the same universe as TestMy.