What's the difference between SimpliSafe and ADT?
What's the difference between SimpliSafe and ADT?

Does SimpliSafe work with ADT?

While there are a few exceptions with third-party hardware, SimpliSafe and ADT devices are not compatible.

Does SimpliSafe use cellular or Wi-Fi?

cellular
SimpliSafe keeps you protected 24/7! It also features a cellular module that operates on a cellular network instead of WiFi. The Base Station will automatically communicate on the cellular network if your WiFi stops working and will automatically switch to battery power if you lose electricity.