How MailViewed compares.

Mailtrack's free plan adds a promotional signature to your emails and shows only the first open, and it asks for permission to read, send and delete your Gmail. MailViewed adds no branding, shows every open on your last 30 days of emails for free, and never asks Google for permission to read your mail.

MailTracker's free plan stops showing details after 20 emails a month, link tracking is paid and switched on by support, and unlimited tracking starts at $20 a month billed yearly. MailViewed has no monthly cap on tracked emails, even on Free, and Pro costs $2.99 a month.

TrackMailBox and MailViewed are both free and unbranded. The difference is what counts as an open and what happens to the people you email. TrackMailBox leaves scanner and Apple privacy opens for you to spot, shows recipients' approximate location and keeps their data while your account is open. MailViewed filters those opens out, never locates anyone, and deletes tracking data after 12 months.

MailSeen's free tier covers 10 tracked emails a month, its paid prices aren't published, and its extensions haven't been updated since June 2025. MailViewed has no monthly cap on tracked emails, shows its prices up front and ships updates regularly.

Snov.io's free tracker needs an account on Snov.io's sales platform, and some of its optional features need access to your Google account. MailViewed is a tracker first: you sign in with Google, it never asks Google for permission to read your mail, and it keeps scanner opens out of your numbers.