GMass Pricing 2026: What Gmail's Own Limits Cost You

1. 1

   Standard, single Gmail account

   $25/mo

   Somewhere between 500 and 2K sends a day depending on whether the mailbox behind it is personal Gmail or Workspace; Google sets that ceiling, not GMass.

2. 2

   Premium, single Gmail account

   $35/mo

   Adds auto follow-ups, behavior-based filtering, and deeper analytics on top of Standard, but the same Gmail API ceiling still applies.

3. 3

   Professional, 5 users

   $275/mo (5 x $55)

   A team plan with shared templates and analytics, though every individual user is still bound by their own mailbox's Gmail limits.

4. 4

   Professional, 10 users

   $550/mo

   Costs scale in a straight line per seat added; there is no published discount for buying more.

5. 5

   ColdSMTP add-on for higher volume

   +ColdSMTP fees

   A separate SMTP route that gets you past the Gmail caps, running on shared infrastructure with its own pricing outside the Standard or Premium plans.

Most cold email tools own their sending infrastructure end-to-end, they decide daily limits, warmup behavior, routing, IP allocation. GMass owns none of that, because it runs as a Chrome extension sitting on top of Gmail. Sending happens through the Gmail API, and Google enforces every limit involved.

That has two consequences for pricing. First, GMass literally cannot charge for volume it has no way to deliver, so the $25 Standard and $35 Premium price points reflect capacity that is bounded by Google, not by GMass. Second, GMass cannot differentiate on infrastructure quality, since the infrastructure is Gmail's.

What it competes on instead is workflow, mail merge, follow-ups, analytics, team tools, not send capacity. For buyers: GMass fits perfectly if you want a Gmail-native workflow bounded by Gmail's own volume. It is a mismatch entirely if you need to send past Gmail's caps, no matter what you are willing to pay.

ColdSMTP is GMass's answer for senders who need to get past Gmail's API ceiling. It runs on shared SMTP infrastructure to push volume beyond the standard 500-2K daily cap. Pricing for ColdSMTP sits entirely apart from the Standard, Premium, and Professional tiers, and it is metered by volume rather than by seat.

Teams needing to exceed Gmail's limits while staying inside the GMass workflow use this path. The catch: ColdSMTP forfeits the Gmail-native deliverability advantage that is GMass's whole original selling point. Once you route through shared SMTP, the receiving server sees relay traffic instead of gmail.com traffic, and inbox placement behaves differently as a result.

In practice, ColdSMTP is a good stretch mechanism for occasional volume spikes, not something to build a high-volume architecture around. Teams consistently needing 5K+ sends a day are better served evaluating dedicated cold email platforms instead of pushing GMass past its natural fit.

At $55/user/mo, GMass Professional is the priciest way to use the product per person. That premium only pays off when the team-oriented features, shared templates, team analytics, dedicated onboarding, priority support, actually create operational value. For a 2-person team where each person runs independent workflows, two separate Standard licenses at $25 each ($50/mo total) can beat Professional ($110/mo for the same two seats) without giving up much real functionality.

For a 5-person team running genuinely coordinated outbound with shared templates and shared analytics, Professional at $275/mo earns its keep because that coordination has real value. A simple test: if shared templates and analytics function as core infrastructure for your team, go Professional. If your team is really just independent operators sharing a logo, multiple Standard licenses will save money.