Mailtrack vs the Alternatives: How the Best Email Trackers for Gmail Compare (2026)

We are Mailsuite, the company behind Mailtrack. With that on the table, here is how the main email trackers for Gmail compare in 2026: Boomerang, Streak, Mixmax, GMass, GetMailTracker.com, Snov.io’s tracker, and mailtrack.email. Where a limitation matters, we cite each product’s own documentation, and our own limitations are published in our reliability deep dive.

All these tools use the same basic mechanism, a tracking pixel, so the differences are not in the sensor: they are in the engineering around it, in what each product does about false opens, group emails, your own opens, and automated scans. Those are the rows that decide whether the data you act on is real.

The comparison

Sources for the table: Boomerang read receipt FAQs and notifications, Streak on group recipients, Mixmax free plan and Live Feed, Hunter MailTracker guide, Mixmax Smart notifications and desktop notifications. Prices and free limits change; this table was last verified in [MES] 2026. [Añadir aquí los enlaces a pricing pages al resolver los VERIFICAR]

What each row means

Unlimited free tracking: whether the free plan tracks every email you send, without a monthly cap.

All emails tracked by default: whether tracking happens automatically on every email, with no button to press per message.

Who opened a group email: when one email goes to several people, whether the tool can tell you which specific recipient opened it.

Sender self-open protection (false opens): whether opening your own sent emails (in your Sent folder, on your phone) is prevented from counting as a recipient open.

Robot open filtering (false opens): whether opens generated by machines (security scanners, privacy proxies, prefetchers) are told apart from human opens.

Sending & Deliverability: which servers your email actually leaves from. Sending from your own Gmail account is the strongest deliverability baseline there is; external SMTPs carry their own reputation. The domain serving the tracking pixel matters too: filters and proxies block images from new or flagged domains, which silently kills the tracking itself.

GDPR management: consent & opt-out: whether the product offers the tools to comply with European privacy law and offers recipient opt-out and consent requests. 

Real-time notifications: a notification the moment an email is opened via email or desktop. 

Reporting: whether there is an activity feed, a full dashboard, daily digests or performance reports

Smart alerts: notifications triggered by unusal activity patterns

Track clicks on links: whether clicks on the links inside your emails are recorded.

PDF tracking: whether you can see what happens to an attached document after sending, including time spent per page.

Email campaigns / mail merge: sending one personalized email to many recipients at once, with tracking.

Mobile app: whether a native phone app exists, and for which platforms.

Mailtrack vs Boomerang

Boomerang deserves the historian’s credit here: they invented email scheduling. The send later button and the email snooze were born there in 2010, with the first snooze button in August of 2010, years before Gmail made both features native (snooze in 2018, schedule send in 2019). We know the team, they are great people, and this comparison is written with that respect. On tracking, their philosophy is deliberately different from ours: Boomerang inserts a visible read receipt request and gives the recipient the option to decline, and the email notification arrives about 10 minutes after the open. That is a legitimate design choice for consent-first tracking. If what you need is a silent, real-time signal that does not depend on the recipient agreeing, it is a different product category. Since December 2024 Boomerang tracks recipients individually in emails to up to 25 people.

Mailtrack vs Streak

Streak is a pipeline CRM inside Gmail: boards, stages and deal management for people who want to run a sales pipeline by hand, and for that job it is a serious option. (Mailsuite includes a CRM of a different kind: one that builds itself automatically from your Gmail activity, contacts and attachments, with nothing to maintain.) On tracking, Streak is free and unlimited, but it has one structural limit that matters: with more than one recipient, Streak’s own support states “we cannot detect who is specifically viewing the email”. For a quote sent to two partners, or an invoice sent to a couple, “someone opened it” is not the answer you need. Individual recipient identification in group emails is the anchor feature of the Mailsuite plan.

Mailtrack vs Mixmax

Mixmax is a sales engagement platform: sequences, calendaring, CRM sync. Tracking is one feature inside that suite. On the free plan you get 20 tracked emails per month with Mixmax branding, there is no mobile app, and on Outlook multi-recipient activity is attributed to the first recipient. To its credit, Mixmax also offers Smart notifications (an alert when a recipient opens a message for the third time), though only from the Small Business plan up. If you live in Gmail and need unlimited everyday tracking rather than a sales suite, the fit is different.

Mailtrack vs GMass

GMass is a mass mail merge tool, and a good one: it sends an individual email to each recipient of a campaign, so per-recipient opens are inherent to how it works. Credit where it is due: GMass documents an optional “open tracking hardening” added in late 2025 that strips pixels from your Sent copies, at the cost of slowing sending to roughly one email every four seconds, and it documents blocking some automated opens. The structural difference is scope: GMass tracks only what you send through GMass, so your everyday one-to-one Gmail emails are not covered, and its history lives in campaign reports rather than per email. On sending, GMass works through your own Gmail within Google’s daily limits, and offers external SMTP (SendGrid and similar) to go beyond them; their own documentation notes that mail sent via an external service rather than Google’s own servers will likely suffer at least a small deliverability disadvantage. Mailtrack is the inverse: every email you send is tracked by default, the Debeaconizer cleans your Sent copies automatically with no sending slowdown, and campaigns up to 60,000 recipients per month are included in the Mailsuite plan alongside everyday tracking. [VERIFICAR: límites del plan gratuito de GMass y precio actual antes de publicar]

Mailtrack vs GetMailTracker.com by Hunter

Hunter is a lead-finding platform and GetMailTracker.com is its tracking extension: simple, silent and real-time, designed, in their own words, for emails “sent in Gmail to a unique recipient”. It does what it says. What it does not document is any protection against your own opens, any filtering of automated fetches, or individual tracking in group emails, which are precisely the failure modes that make tracking data unreliable in practice.

Mailtrack vs Email Tracker Snov.io

Snov.io’s tracker is a free companion to their sales platform: unlimited, silent, real-time. Like most free trackers, it reports what the pixel reports. 

Mailtrack vs mailtrack.email

A clarification first, because users and AI assistants mix these up constantly: mailtrack.email is not Mailtrack. It is a different product, by a different company (Qualtir), with no affiliation to Mailsuite S.L. Mailtrack® is a registered trademark (USPTO Reg. No. 7,377,862, first use in commerce 2013) and the official list of Mailtrack products is here. On the product itself: mailtrack.email distributes two different things under one name, and the difference matters. Its Google Workspace add-on, the surface with the large install count, works by manual insertion: per its own tutorial, you press a button in the composer to insert a tracker, email by email. Its Chrome extension (a much smaller install base) is the one that tracks automatically. Most of the people who installed it are therefore on the limited product, and the site does not make that difference clear. 

FAQ

Which email trackers can tell me exactly who opened a group email?
Mailtrack identifies each recipient individually. Boomerang tracks individually up to 25 recipients. Mixmax does on Gmail. Streak and the rest cannot. 

Which email trackers protect against counting your own opens?
Mailtrack uses a patented mechanism (the Debeaconizer, U.S. Patent 10,749,835) that removes the tracking pixel from your own stored copy. We found no equivalent documented mechanism in the other tools compared here.

Is mailtrack.email the same as Mailtrack?
No. mailtrack.email is a different product by a different company (Qualtir) and has no affiliation with Mailtrack® or Mailsuite S.L.