GMass Review 2026
Last reviewed June 2026 by Théo Pascard
Overview
GMass is a Gmail extension that turns your inbox into a cold email and mail merge tool. It pulls recipients from Google Sheets, personalizes at scale, and handles scheduling and automated follow-ups without ever leaving Gmail. It is popular with solo operators and small teams who want sending power without learning a separate sales platform. It is not a full sales-engagement suite, and everything runs through your Gmail account.
Enjyn Score
iWeighted across 5 axes, computed from public review data (G2, Capterra) and reweighted on our rubric — then overridden on the axes we operate first-hand.Who it's for
- →Solo founders and creators sending outreach from Gmail
- →Small teams already living in Google Workspace
- →Anyone running mail merges off a Google Sheet
- →Light cold email and follow-up campaigns
Not for
Capabilities
- Send mass personalized email directly from Gmail
- Mail merge driven by Google Sheets columns
- Automated follow-up sequences based on opens and replies
- Schedule sends and throttle daily volume
- Open, click, and reply tracking with reports
- Built-in list verification and inbox rotation
Ratings & reviews
👍 Pros
👎 Cons
Pricing
| Tier | Price | Credits / mo | Notes |
|---|---|---|---|
| Standard | $25/mo | — | Individual plan, unlimited emails, mail merge, scheduling, follow-ups |
| Premium | $35/mo | — | Individual plan, adds behavior-based automated sequences and triggers |
| Professional | $55/mo | — | Individual plan, full feature set including API access |
| Team | Custom | — | Per-seat pricing for multiple users, billed by number of seats |
The honest take
Where it breaks
The verdict
FAQ
Does GMass work outside Gmail?
No. GMass is a Gmail and Google Workspace extension that sends through your connected Google account, so it requires Gmail to operate. Everything — mail merge, scheduling, and follow-ups — runs inside your inbox rather than a separate platform, which is the whole appeal for solo operators and small teams already living in Google Workspace.
Is there a sending limit?
GMass itself does not cap volume — paid plans advertise unlimited sending — but your sends are bound by Gmail's own daily sending limits, which vary by account type. Because GMass lives entirely inside Gmail, high-volume senders past Gmail's ceiling will hit that wall and may outgrow the tool, since it offers no separate sending infrastructure.
How is GMass priced?
GMass is seat-based, billed monthly per individual user. Standard is $25/month with unlimited emails, mail merge, scheduling, and follow-ups; Premium is $35 and adds behavior-based automated sequences and triggers; Professional is $55 with the full feature set including API access. Team plans are priced per seat for multiple users, billed by number of seats.
Can it do automated follow-ups?
Yes. GMass can send sequences of follow-ups automatically and stop when a recipient replies. Follow-ups are based on opens and replies, and the Premium plan adds behavior-based automated sequences and triggers. Combined with scheduling and daily volume throttling, it covers light cold email and follow-up campaigns without leaving Gmail.
Is GMass a CRM or sales platform?
No. It is a focused email-sending and mail merge tool, not a multichannel sales-engagement platform with CRM depth. It offers no channels beyond email and no CRM-grade reporting, so teams needing multichannel cadences or deep CRM integration will outgrow it. Pick GMass when Gmail-native simplicity matters more than multichannel reach or CRM depth.
We run this stack for B2B teams
Skip the months of trial and error. We build the GTM system that books meetings.
Book a GTM audit →