My android phone kept making the texting alarm but when I checked I could not find any texts. I thought I was losing my mind until eventually I found the iheart app was leaving advertisements normally where I pull down to see system messages for program updates, wifi, etc. It really pissed me off.
I was able to turn it off by going into the iheartapp, touched the 3 bars and selected "push notifications". Under push notifications there were options to turn all notifications off or by category.