At a glance
- GMass is listed under Email marketing, alongside ActiveCampaign, AWeber and beehiiv.
- GMass's pricing model: per user or team size, monthly or annual.
- GMass is available on Chrome and Gmail.
- GMass works with Google Sheets, Gmail and Slack.
- GMass's main features: Mail merge personalization, Automatic follow-ups, Inbox rotation, AI spintax.
- GMass has a public API.
- We haven't confirmed whether GMass has a free plan.
Facts from gmass.co, checked October 28, 2026.
AI summary
The summary writes itself once 5 people have reviewed this tool.
It's built only from what reviewers say: who it's best for, who should think twice, and what comes up again and again.
Reviews needed for a summary0 of 5
