Based on our record, MailTracker seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
MailerCheck is the best, but I used also Hunter in the past and it did its duty pretty well. Source: over 1 year ago
MailTracker for Gmail is free but it only shows you if the email has been opened. Source: over 2 years ago
Hunter mailtracker - Email tracker to see if/when/how often customer/ investors see your emails. Source: almost 3 years ago
Hunter Mail Tracker: This is a classic. Bring “WhatsApp” read checks to your email. Know each time your email gets opened. Period. Source: almost 3 years ago
Topicbox - Put team emails into one centralized, searchable place
Mailtrack.io - The best email tracking solution I've found. Free
Nova Inbox - Personalize emails in seconds, right from your inbox
Snov.io - More leads. More sales. More revenue.
InboxSDK - First usable API to write Gmail Apps for 1B active users
Unlimited Email Tracker - Track opens and clicks, set reminders and delays in Gmail