iTrackmail is described as 'Want to know if people are reading the emails you send? iTrackMail will let you know whenever someone opens your email!' and is an app in the social & communications category. There are more than 10 alternatives to iTrackmail for a variety of platforms, including Online / Web-based, Linux, Windows, Mac and Google Chrome. The best alternative is Mailtrack for Gmail, which is free. Other great apps like iTrackmail are Boomerang Mail, Vocus.io, Mailcastr and mTracker.
Mailcastr is an email tracker app for Gmail and Inbox which shows when your email is opened/read by the recipient. Mailcastr android app helps you to stay updated wherever you are with real time push notifications and updates.