The SpeedSmart speed test is first seen on the Wayback machine March 2015.
SpeedSmart is an ambiguous speed test. In other words, the results are often between values expected by mainstream speed tests and realistic speed tests.
SpeedSmart is a flawless speed test. That is the results aren't that inaccurate and the user experience is fine. There are no ads, and there are no pop-ups.
SpeedSmart does exactly what you expect from a speed test. SpeedSmart is number 2 in the top 5 of accurate speed tests. Number 2 because the results are always higher then the advertised speed, however the standard deviation is relative small.
In the speed test overview you find all findings regarding the SpeedSmart speed test.