I just recieved a pop up prompt on mobile for a spectrum app, it went away and wont come back, i also cannot find this on app stores... is this a new development? Edit: Appears many replies are right. I was using android chrome app and i believe it was attempting to install a button to open chrome and go directly to spectrum. First time i had seen it. Usually i dismiss apps but i wanted to also check to make sure i wasnt missing out on app features later.