The ESP Easy app (my app)is created for usage with the ESP Easy firmware for ESP8266/ESP32 based devices. The app and the ESP unit communicate by calling HTTP URL’s on each others IP’s. You can abuse my app by sending custom specially formatted HTTP requests. The trickiest thing you’ll have to conform to is having a /json path that kind-of conforms to the format of ESP Easy.
I can help you set it up if you want.
Other option of course is simply to install the ESP Easy firmware and use that 
