1. uBlock Origin
Efficient, open-source content and ad blocker.
Why it replaces Mail Seen - Unlimited Email Tracker for Gmail: A similar extension to Mail Seen - Unlimited Email Tracker for Gmail, worth checking out.
Best Mail Seen - Unlimited Email Tracker for Gmail Alternatives in 2026
Mail Seen - Unlimited Email Tracker for Gmail is a strong option, but it is not the right fit for everyone. Below are 1 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About Mail Seen - Unlimited Email Tracker for Gmail
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!
Comparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| Mail Seen - Unlimited Email Tracker for Gmail (original) | 4.7 | 6K+ | Free | |
| uBlock Origin | 4.7 | 11M+ | Free | Anyone who wants the most efficient, most configurable ad and tracker blocker available. |
Mail Seen - Unlimited Email Tracker for Gmail alternatives in detail
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Frequently asked questions
What is the best alternative to Mail Seen - Unlimited Email Tracker for Gmail?
uBlock Origin is the closest match. A similar extension to Mail Seen - Unlimited Email Tracker for Gmail, worth checking out.
Is there a free alternative to Mail Seen - Unlimited Email Tracker for Gmail?
Yes — uBlock Origin are free.
Why switch away from Mail Seen - Unlimited Email Tracker for Gmail?
Common reasons are pricing, missing sync or team features, and specific limitations: .