The cost of receiving real-time intruder notifications on your phone from a surveillance camera may vary depending on the specific camera model and the method of notification. Some cameras may require a subscription to a monitoring service or cloud storage service, which can come with a monthly fee.
However, most cameras offer free alerts through their own mobile app, or include email or push notifications. Some cameras may have limits to number of alerts sent daily or monthly. It’s important to read the product information and instructions carefully to understand if there are any associated costs or fees.