Possibly one of the best perks of purchasing an Amazon Echo device is that there's no monthly fee to use it. It's your entry point into Alexa's incredible AI and — aside from the purchase price of the Echo device itself — she and her ever-growing list of skills are totally free to use. The only reason you might encounter a paywall while using your Echo device is if you're asking Alexa to access another service, such as a streaming music service. (And yes, that includes Amazon Music; you may be prompted to start a Music Unlimited subscription if you try to access a song that's not free. Can't win 'em all, I guess.)