Signals and Inducator

Can anyone tell me whats the differences between signal and indicator? When to use and what signal and indicator most people use to tread?

Singals are normally trade ideas that are sent via email to text and then you read them decide to trade them or not. Indicators are normally built in mt4 and will pop up trade ideas within your mt4 account itself.

Hi Paul, thanks for the info. So, for newbie like me which do you advice me to use ? Signal or indicator ?