Mail Seen - Unlimited Email Tracker for Gmail
Know when your emails are opened!
As of May 2026, Mail Seen - Unlimited Email Tracker for Gmail has 5,000 users and a 4.67/5 rating from 155 reviews in the Workflow & Planning category.
Usersup 25.0 percent+25.0%
5.0K
5,000
Ratingdown 0.4 percent−0.4%
4.67
155 reviews
Reviewsup 12.3 percent+12.3%
155
Version
5.6
Manifest V3
90-day change · In the last 90 days this extension gained 1.0K users.
History
4 snapshotsTracking since Apr 20, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 20, 2026 | 4.0K | 4.69 | 138 | 5.6 |
| May 5, 2026 | 5.0K | 4.70 | 143 | 5.6 |
| May 16, 2026 | 5.0K | 4.68 | 145 | 5.6 |
| May 30, 2026 | 5.0K | 4.68 | 148 | 5.6 |
| Now | 5.0K | 4.67 | 155 | 5.6 |
Permissions & access
- Permissions
- declarativeNetRequestdeclarativeNetRequestFeedback
- Host access
- https://mail.google.com/, https://authapi-f6o7ittoia-uc.a.run.app/
Screenshots
About
MailSeen - The Ultimate Email Tracker for Chrome for FREE Easy solution to know when your email was seen by the recipient. We will also tell you how many times and exactly when they were viewed. Your email experience will never be the same. / Why Choose MailSeen? 💎 - It's free up to 10 emails per month 🎀 - Probably the best looking UI 🔮 - Advanced tracking 🚀 - Not fast, instant (less than 20 milliseconds) 📊 - Advanced Analytics 🦎 - Enable/Disable tracking // How to Get Started in 2 steps 1. Add MailSeen to your Chrome browser 2. Start sending emails (a tracking label will be visible on the Subject line only for you - you don't need to do anything) > See statistics /// Features 🛰 - Invisible tracking so the recipient will never know you are tracking 📡 - Unlimited tracked emails Use it for as much as you want for as many emails as you want 🎖 - Unlimited email accounts Use it for all your accounts, personal or private 💫 - Everything is automated You can keep using your email without additional steps to enable tracking 💉 - Precise Know to the second about when the email was opened 🏗 - Iterative Know how many times your email was seen 📊 - Analytics Know who what is your open rate, engagement rate per email, etc. ☂️ - Secure Your emails are stored securely with Google Cloud Discover the future of email communication. Add MailSeen to your browser today and experience email tracking like never before!
Technical
- Version
- 5.6
- Manifest
- V3
- Size
- 5.99MiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- Yes
Metadata
- ID
- mlaaofkinooaabkchhidlhhjoiaomcmf
- Developer ID
- u40188d9bcf0c75b9d424b9887a5e50ac
- Developer Email
- [email protected]
- Created
- Oct 20, 2023
- Last Updated (Store)
- Jun 13, 2025
- Last Scraped
- May 30, 2026
- Website
- mailseen.com
- Support URL
- https://www.mailseen.com/
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Data sourced from the Chrome Web Store · last verified May 30, 2026.