What is Sonoff?
Sonoff is a smart home brand from China, which produce many smart hardware devices. Including breakers, switches, bulbs, etc.

What APP does Sonoff use?
The eWelink app. eWeLink is an IOT platform that supports smart devices of multiple brands including Sonoff. At the same time, Sonoff and eWeLink are a strategic partnership. So Sonoff uses eelink app.

Does Sonoff works with Smart Life app?
Absolutely not. Sonoff use ewelink app, and ewelink and smart life are direct competitors. The devices between them are currently incompatible.