The app has more than 10,000 downloads and has received mixed reviews. It is not known how many people have subscribed.
It connects Bushiri, who already has a "prophetic channel", with his choir members and local and international congregants through multiple screens.
The launch coincides with the physical distancing regulations which prohibit mass gatherings in an effort to curb the spread of Covid-19.
ECG said it expects to connect 30,000 people in its upcoming service.