GMass vs Mailtrack
GMass vs Mailtrack is a choice between two Gmail-first options at very different price tiers, and often the real question is whether you need mail-merge features at all.
GMass and Mailtrack are both Gmail Chrome extensions at heart (Mailtrack also has a lighter Outlook add-in) but solve different problems. GMass is a mail-merge platform for sending personalised emails from Google Sheets data, with sender warm-up, follow-up sequences, and basic tracking, priced from $20.75 to $49.92 per user per month yearly. Mailtrack is basic open and click tracking with reminders, priced from free (with footer) to $14.99 yearly Premium.
The deciding question is whether the team needs mail-merge at volume (GMass) or just open tracking (Mailtrack). They are not direct competitors on feature surface; the comparison usually surfaces when a Mailtrack user grows into needing mail merge.
Want a third option neither GMass nor Mailtrack covers?
Outsolvi handles graded email tracking and AI-drafted follow-ups, with LinkedIn automation as an add-on. Native Outlook + Gmail, from $7/mo, 14-day free trial.
Where GMass and Mailtrack differ
Both are built for Gmail; GMass has no Outlook support and Mailtrack's Outlook add-in tracks opens only. Both count raw pixel loads as opens with no confidence scoring exposed. Both run inside the user's own Gmail or Workspace account, preserving the sender domain's reputation.
Verdict by buyer profile
GMass's Sheets-driven mail merge and sender warm-up are exactly the right tools for this motion. Mailtrack does not have mail merge.
Mailtrack Pro at $4.99 yearly is the cheapest paid option in the category. No mail-merge overhead.
Outsolvi instruments the relationship motion with graded opens and keyword-based reply labels. Many teams keep GMass for the prospecting layer and add Outsolvi for warm-thread tracking once a prospect engages.
Outsolvi is not a mail-merge tool. If your motion needs sending 500-2000 emails per rep per week from a Sheets-driven list, GMass is the right tool: Outsolvi has no Google Sheets connection, and its sequences run under a per-mailbox daily cap (50 by default). If your motion is relationship selling on warmer pipeline (or 30-100 sends per rep per week to named accounts), Outsolvi at $7-$20/user/mo yearly grades every open as a person or a machine, labels replies by keyword, and covers Gmail plus classic, web and new Outlook. For teams in transition (moving from cold blast to relationship motion), keeping GMass for prospecting and adding Outsolvi for the warmer thread tracking is a common pattern.
Frequently asked questions
Do GMass and Mailtrack really compete?+
Not directly. GMass is a mail-merge platform; Mailtrack is a basic tracker. They surface in the same search results because both are built for Gmail and both touch sales email, but the use cases are different. A team usually picks one or the other based on whether mail merge is the load-bearing need.
Can I run mail merge with Mailtrack?+
No. Mailtrack tracks individual emails but does not have a mail-merge engine. For mail-merge workflows, GMass, Saleshandy, or another cold-outreach tool is the right fit.
Which has better deliverability?+
GMass has more deliverability tooling (sender warm-up, throttling, rotation) because cold-outreach volume requires it. Mailtrack does not affect deliverability, it just tracks what you send. Deliverability follows the sender domain's own reputation in both cases.
Are both Gmail-only?+
No. GMass is Gmail-only, but Mailtrack now has an Outlook add-in through Mailsuite. It tracks opens only, so for mixed Outlook + Gmail teams neither fully covers the Outlook side.
What is the price difference?+
GMass Standard at $20.75/user/mo yearly is about 4x Mailtrack Pro at $4.99. The premium covers the mail-merge engine, sender warm-up, and campaign management. For teams that do not need those features, GMass is paying for stranded value.
Where does Outsolvi fit?+
Outsolvi is the tracking-intelligence layer for warmer-pipeline AE work, not a mail-merge engine. $7-$20/user/mo yearly with Gmail plus classic, web and new Outlook and every open graded as a person or a machine. Many teams use GMass for cold-prospecting and Outsolvi for warm-thread tracking. Full breakdowns at [Outsolvi vs GMass](/compare/gmass) and [Outsolvi vs Mailtrack](/compare/mailtrack).
Want the third-option breakdown?
Outsolvi covers Outlook and Gmail, grades every open as a person or a machine, and labels replies, from $7/user/mo billed yearly. 14-day free trial, no credit card.
Start 14-Day Free TrialDeeper resources for each tool
Compare each tool against Outsolvi directly, see ranked alternatives, or read the migration guide.
Related comparisons and research
Other head-to-heads, comparison pages, glossary entries, and ranked lists on the same tools and topics.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
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.