The Ring doorbell offers a subscription service called Ring Protect. Though not mandatory to own, the plan comes with its own advantages. The prices can range from $4 to $20 per month.
Without a Ring Protect plan, you can have the following:
Live video footage of your home
Motion detection notifications from the camera
Two-way communication system with the doorbell
Whereas with a Ring Protect plan, you get
Ability to save recorded videos and share them if necessary
Snapshots from the camera during the day
Extended warranty for your device
Some discounts for your next Ring device purchase