No. 28 of 34 ·Email Outreach Software

GMass

Name: GMass
Price: 20 USD

Web · Extension · paid plans from $1.67/mo

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Freedom report

No signalScore 4.7

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

GMass is ranked #28 of 34 in email outreach software on Freedom251. It runs on Browser extension, Web. There is no free plan. A free trial is offered. Paid plans start at $1.67/mo.

GMass plans and pricing

All plans

Standard $20/yr $249 paid annually Unlimited emails · Unlimited contacts · Unlimited campaigns · Mail merge personalization · Email support gmass.co · 8 Oct 2026

Premium $29/yr $349 paid annually Unlimited emails · Unlimited contacts · Unlimited campaigns · Sequences and follow-ups · API access (+Zapier) · A/B testing · Triggered Emails gmass.co · 8 Oct 2026

Standard $29.95/mo Billed monthly Unlimited emails · Unlimited contacts · Unlimited campaigns · Mail merge personalization · Email support gmass.co · 8 Oct 2026

Premium $39.95/mo Billed monthly Unlimited emails · Unlimited contacts · Unlimited campaigns · Sequences and follow-ups · API access (+Zapier) · A/B testing · Triggered Emails gmass.co · 8 Oct 2026

Professional $49/yr $599 paid annually Unlimited emails · Unlimited contacts · Unlimited campaigns · Sequences and follow-ups · API access (+Zapier) · A/B testing · Triggered Emails · Inbox Rotation (MultiSend) · High-priority support gmass.co · 8 Oct 2026

Professional $59.95/mo Billed monthly Unlimited emails · Unlimited contacts · Unlimited campaigns · Sequences and follow-ups · API access (+Zapier) · A/B testing · Triggered Emails · Inbox Rotation (MultiSend) · High-priority support gmass.co · 8 Oct 2026

Compared on email outreach software

Free plan: No
Outreach channels: email_only
Email warm-up: No
Reply detection: Yes
CRM synchronization: Yes

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The record

Product: GMass sends newsletters, announcements, cold email campaigns, and transactional email from inside Gmail.
Personalization: It supports mail merge personalization and conditional logic for campaigns.
Google Sheets: GMass can use Google Sheets rows as recipients and columns as merge fields.
Campaign tools: Features include campaign analytics, scheduling, automatic follow-ups, A/B testing, and unsubscribe and bounce management.
Integrations: GMass lists a REST API, webhooks, Zapier, Google Sheets API, and SMTP relay as ways to connect with other apps and services.
Delivery: GMass says it can route sends through Gmail, inbox rotation, or SMTP as audience size grows.
Security and privacy: GMass says it stores recipient email addresses for campaign features, does not store campaign subject or message content, and secures the email-address database with two layers of firewalls.
Data sharing: GMass says it may share email-list information with service providers, including advertising platforms, for targeted advertising, and does not sell or trade that information for other purposes.
Support: GMass directs customers to read support guidelines and submit a support form to contact its support team.
Best fit: GMass describes uses including cold outreach, sales, newsletters, internal communications, clubs, nonprofits, schools, and other groups.
Notable limitation: GMass says its all-at-once settings interface may feel like too much for people who prefer a step-by-step wizard.
Company: The About page identifies Ajay Goel as GMass's founder and lists Dayton, Ohio in his profile.
Price from: $1.67/mo

Where it ranks on Freedom251

Best Email Outreach Software in 2026#28 of 34
Best Email Scheduling Software in 2026#29 of 30
Best Mail Merge Software in 2026#28 of 29

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Sources

gmass.co· checked 8 Oct 2026
gmass.co/blog/gmass-privacy-information-what-dat· checked 8 Oct 2026
gmass.co/support· checked 8 Oct 2026
gmass.co/blog/who-uses-gmass/· checked 8 Oct 2026
gmass.co/about-us· checked 8 Oct 2026
gmass.co/pricing· checked 8 Oct 2026