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
Alternatives
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.
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