Blynk+ESP 8266+iOS

I am a beginner and want to connect ESP8266 with Arduino Uno board to control LED/Relay via mobile (iOS). Please guide me how to make connections, installing blynk and connecting it with blynk. I am having problem in using Blynk application as i am using it first time.

Hi @ranjeet.

We kindly ask everyone to do their research before asking questions that were discussed so many times