Know when and where your emails are open after you click "Send". Get profile picture and social media profiles of your contacts directly from your Gmail.
Really easy to use and doesn’t get in your way (sidebar collapses if not used). Free is great - others charge for the same service
Maybe in the paid plan, I’d love to see some more features like scheduling emails.
Overall a must-have tool if you’re in your inbox all day long.Michael Krilivsky has used this product for one week.