Ranked List7 tools comparedUpdated May 24, 2026

Best Email Tracking for Gmail in 2026

Gmail dominates B2B email at SMB and tech-startup scale, and the tracking-extension category is crowded. Most options are Chrome extensions injecting UI into the Gmail web page; a few ship Google Workspace add-ins for organisations on stricter IT policies. The buyer-deciding factors in 2026 are open accuracy (Apple MPP inflates Gmail tracking pixels the same way it inflates Outlook), AI features at the base tier, and whether the tool also covers Outlook for teams that grow into mixed-client setups.

This ranking is the seven Gmail trackers worth evaluating in 2026, ordered by the criteria that actually matter: open accuracy with confidence scoring, AI features at base tier, Outlook coverage (relevant once the team grows), privacy posture, and per-seat math.

TL;DR

Outsolvi is the top pick for Gmail teams because it is the only Gmail tracker that also runs natively on Outlook (one tool for team growth), exposes Tier 1 to 5 confidence scoring, and includes AI at the $7 yearly base tier. Mixmax is the Gmail-only premium pick for sequence-driven outbound. Mailtrack is the cheapest paid option. Streak is the Gmail-native CRM with tracking bundled. Right Inbox bundles nine features in one extension. GMass is for mail-merge volume. Vocus.io is for small Gmail teams.

How we ranked these tools

Each tool was evaluated on Gmail Chrome extension or Workspace add-in quality (20%), open-tracking accuracy / confidence scoring (25%), AI included or gated (20%), Outlook coverage for team growth (15%), privacy and security (10%), per-seat yearly price (10%). Pricing is the publicly listed rate in May 2026, billed yearly.

Outsolvi

Gmail Chrome extension plus native Outlook add-in at full parity, with confidence scoring and AI at base.

Best for

Gmail teams that want one tool that scales to Outlook later, with accurate open tracking.

Pros

Gmail extension plus native Outlook (Desktop, Web, New Outlook) at feature parity
Tier 1 to 5 confidence scoring on opens exposed to the rep
Hot-lead detection and AI reply sentiment at $7 yearly base tier
Metadata-only privacy, AES-256 at rest, TLS 1.3 in transit, SOC 2 aligned

Cons

•No automated cold sequences or mail merge engine
•No built-in meeting scheduler
•Salesforce native sync on near-term roadmap (webhook today)

Pricing

$7/user/mo yearly. $12/mo monthly. Teams Pro $20/user/mo yearly.

Verdict

Top pick because it is the only Gmail tracker that does not force a re-platform when the team adds Outlook users.

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Mixmax

Polished Gmail-native engagement platform with strong sequences and embedded scheduling.

Full comparison

Best for

Gmail-only teams running sequence-driven outbound at meaningful volume.

Pros

Sequence engine is one of the more refined in the category
Embedded polls, surveys, scheduling links inside Gmail compose
Sidebar CRM context surfaces inline

Cons

•Gmail-only. No Outlook at any tier.
•Pricing starts at $29/user/mo yearly SMB and climbs
•No confidence scoring exposed to the rep

Pricing

SMB $29/user/mo yearly. Growth $49. Enterprise $89.

Verdict

Worth it for Gmail-only teams where sequences and sidebar features are daily-driver workflows. For tracking-first teams, the price-to-feature ratio favours Outsolvi.

Mailtrack (Mailsuite)

The cheap-and-cheerful Gmail starter with two-checkmark visual.

Full comparison

Best for

Solo Gmail users routing follow-ups off reply rate, not open accuracy.

Pros

Cheapest paid tier at $4.99/user/mo yearly
Two-checkmark visual familiar from WhatsApp
Fast install, simple interface

Cons

•Free tier adds "Sent with Mailtrack" footer (B2B credibility issue)
•Gmail-only. No Outlook.
•Raw pixel-load tracking; no confidence scoring or AI features

Pricing

Free with footer. Pro $4.99/user/mo yearly. Advanced $9.99. Premium $14.99.

Verdict

Right pick for single-user Gmail personal-use tracking. Stops being the right tool the moment open accuracy or Outlook matters.

Streak

Gmail-native CRM with tracking bundled as one feature.

Full comparison

Best for

Gmail-only teams without a CRM, willing to commit to Streak as system of record.

Pros

Genuinely deep Gmail-native CRM (pipelines, deals, contact records)
Free tier covers personal-use pipeline tracking
Mail merge with personalisation built in

Cons

•Reads full email content (procurement-review friction)
•Pro at $59/user/mo yearly is the realistic comparison tier
•Raw pixel-load tracking; no confidence scoring

Pricing

Free for personal. Solo $19/user/mo yearly. Pro $59. Pro+ $89. Enterprise $159.

Verdict

Right pick if you need a Gmail-native CRM. For teams that already have a CRM, Streak overlaps with what the team is using.

Right Inbox

Gmail productivity bundle: tracking, templates, scheduling, reminders, notes in one extension.

Full comparison

Best for

Solo Gmail users who want nine small productivity features in one place.

Pros

Bundle covers tracking, scheduling, templates, reminders, recurring sends, notes
Affordable at $7.95 to $14.95 per user per month yearly
Templates with merge tags and team sharing

Cons

•None of the nine features is deep; jack-of-all-trades trade-off
•Gmail-only. No Outlook.
•Raw pixel-load tracking; no confidence scoring or AI features

Pricing

Personal $7.95/user/mo yearly. Professional $14.95/user/mo yearly.

Verdict

Right pick for Gmail-only solo users who want breadth of features over depth. For tracking accuracy, Outsolvi at $7 yearly is cheaper with materially deeper tracking.

GMass

Gmail mail-merge tool with sending infrastructure, follow-up sequences, basic tracking.

Full comparison

Best for

Gmail-only teams running mail-merge volume from Google Sheets.

Pros

Mature mail-merge from Google Sheets with personalisation
Sender warm-up, throttling, chain follow-ups built in
Works with your own Gmail or Workspace account

Cons

•Gmail-only. No Outlook.
•Tracking is bundled inside mail-merge layer; raw pixel loads
•Premium tier at $35/user/mo yearly is realistic comparison

Pricing

Standard $25/user/mo yearly. Premium $35. Enterprise $145.

Verdict

Right pick for Gmail mail-merge volume. For tracking-first AE work, GMass is paying for the mail-merge engine you do not need.

Vocus.io

Lightweight Gmail tracker for small teams with mail merge and team templates.

Full comparison

Best for

Small Gmail-based outbound teams running mail merge at moderate volume.

Pros

Affordable Starter tier at $5/user/mo yearly
Mail merge from Gmail with personalisation
Shared team templates and snippets

Cons

•Gmail-only. No Outlook.
•Raw pixel-load tracking; no confidence scoring
•Built for mail-merge volume, not single-thread relationship selling

Pricing

Starter $5/user/mo yearly. Pro $20.

Verdict

Right pick for small Gmail teams running mail-merge volume on a budget. For tracking-first AE work or any Outlook user, Outsolvi is the better fit.

Frequently asked questions

Which is the best email tracker for Gmail?+

Outsolvi is the top pick because it runs natively on Gmail through a Chrome extension AND on Outlook (Desktop, Web, New Outlook) at full feature parity, exposes Tier 1 to 5 confidence scoring on opens, and includes AI features at the $7 yearly base tier. For Gmail-only teams running sequence-driven outbound at high volume, Mixmax is the premium alternative. For cheapest paid, Mailtrack Pro at $4.99 yearly.

Does Outsolvi only work in Chrome?+

The Outsolvi Gmail extension runs in Chrome and Chromium-based browsers (Edge, Brave, Arc). For organisations on Chrome Enterprise with strict extension policies, Outsolvi is also available as a Google Workspace add-in installable from the Workspace Marketplace, which works under stricter IT policies but has slightly less compose-pane UI than the Chrome extension.

Will Apple Mail Privacy Protection affect Gmail tracking?+

Yes. Apple MPP affects any tracking pixel regardless of which mailbox provider hosts the email. A recipient on a Gmail-hosted mailbox reading through Apple Mail with MPP enabled produces the same MPP pre-fetch signature as a Microsoft 365 recipient reading through Apple Mail. Apple Mail has roughly 58 percent global email-client market share per Litmus in early 2026. Outsolvi grades these as Tier 4 with 18 percent confidence and excludes them from open counts. The detailed math is in the [open-rate accuracy piece](/blog/email-open-rate-accuracy).

What is the Gmail image proxy and how does it affect tracking?+

Since December 2013, Gmail routes every embedded image through googleusercontent.com servers. Google's image-fetching bot loads the tracking pixel before the human opens the email, and the cached image can be re-fetched as the user scrolls, generating duplicate open events. Outsolvi applies a 3-minute dedup window on Gmail-proxy traffic and a stricter User-Agent pattern check, so a single human read does not get counted as multiple opens. Most tools do not apply this filter.

Should I pick a Chrome extension or a Workspace add-in?+

Chrome extension is the default and has the richer UI surface (custom compose-pane elements, sidebar integrations). Workspace add-in works under stricter IT policies (organisations that disallow third-party Chrome extensions) but has a more constrained UI surface. If your IT team allows Chrome extensions, pick the extension. If they do not, the Workspace add-in is the alternative.

What if my team adds Outlook users later?+

Of the seven trackers on this list, only Outsolvi runs natively on Outlook. The other six are Gmail-only. If there is any chance your team adds Outlook users in the next 12-24 months, picking a Gmail-only tracker now means re-platforming later. Outsolvi removes that constraint by covering both clients from day one with one unified dashboard.

Ready to try the #1 pick?

Outsolvi's 14-day free trial requires no credit card and installs in 2 minutes per Gmail account. The full setup guide for Gmail and Outlook is in the [setup post](/blog/outlook-gmail-email-tracking-setup).

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Nate SummersCo-Founder, Outsolvi

Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.

Last reviewed May 24, 2026Editorially independent

We update these pages when the underlying mechanics change — new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.

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