SONAR will show if your email has been opened or not so you can make better decisions on what to do next with your email. Get instant web-push notifications when someone opens your email to make your next move.
Recent launches
SONAR - An Email Tracker for Gmail
SONAR will show if your email has been opened or not so you can make better decisions on what to do next with your email. Get instant web-push notifications when someone opens your email to make your next move.
