Anyone use the Intelligender test? (for fun)

A friend of mine suggestedthis test for fun. She tried it at 11 weeks. She got the boy result. And now she's 18weeks and found out she's having a boy! 
I tried it a few days ago (I'm 11w5d) and my result said boy too!! 
Anyone use it and the results from an ultrasound come back the same as the test?!?