Hiya is such a nucisance when you're trying to place a call the app constantly interrupts you to rate them. That right there makes Hiya a dodgy app. Your app should never interrupt you when you're trying to make a call. Hiya doesn't even pay attention that their app is defective and don't give a toss if you can't use your phone to call anyone until you exit out of their pop up window that they're begging you to rate them. Ridiculous!