Does Paribus have access to Gmail?

I'm curious to know if Paribus, a popular service that helps consumers get refunds for price drops on their online purchases, has access to Gmail accounts. As a user, I'm concerned about the security and privacy of my personal information, especially when it comes to my email account. Does Paribus require access to my Gmail in order to function properly, or is there a way to use the service without granting such access? I'd appreciate any clarification on this matter.