It will not include any logos, signatures in the footer of the Email. Also, it will not ask you to upgrade because it’s 100% Free. This is the best alternative Email Tracker Mailtrack (which is a very popular email tracker available out there). You only have to add the extension from Google Chrome Web Store and you are ready to go.

You will see: 
 - a white label Unopened if an email has not yet been opened;
 - a purple label Opened with the number of times the recipient opened the email;
 - a green label Clicks with the number of times the recipient followed a link in the email.

You can also schedule your Emails and the rest will be taken care of by Snovio. Set reminders for emails that have been opened, interacted with, or ignored, this will help you to follow up with your client. With Email Tracker you will receive live desktop push notifications the moment your email message is read or the recipient clicks a link. For full features check this page.