GMass

gmass.co
Email Marketing
Weekend Project

Easiest way to send an email campaign

How to Replace GMass

Overview

GMass is an email marketing and cold email platform that works inside Gmail, allowing users to send unlimited emails with mail merge personalization from Google Sheets. It breaks Gmail's sending limits and provides automated follow-up sequences, advanced analytics, and deliverability optimization tools.

Features

41 features across 18 categories

AI(3)

AI Template BuilderAI

AI creates custom HTML email layouts automatically

ChatGPT IntegrationAI

Have ChatGPT write your campaigns for you

SpinMax - AI Spintax GeneratorAI

AI-powered automatic spintax that creates variations for every email in your campaign

Also in: monday.com, Notion, Airtable

Automation(7)

Automatic Follow-up Emails

Set automatic follow-up sequences that send until recipient replies to boost response rates

Custom Sending Order

Set a sending order to control which rows GMass emails first

Reply Management

Automatically categorize replies and bounces to prevent inbox clutter

Schedule Mass Emails

Schedule mail merges for future times or set to repeat daily or hourly

Strict Day Count Between Follow-ups

Keep a strict count of days between auto follow-ups

Triggered Emails

Send triggered emails immediately when a prospect is in their inbox

Unlimited Auto Follow-up Stages

Send unlimited automatic follow-up stages in sequences

Also in: monday.com, Notion, Airtable

CRM(1)

Google Sheets CRM

Free Google Sheets CRM made for GMass

Also in: monday.com, Setmore, HubSpot

Collaboration(1)

Fast Reply Management

Reply to emails 10x faster with built-in reply tools

Also in: Notion, Airtable, Obsidian

Core Functionality(2)

Mass Emails in Gmail

Send unlimited emails directly from Gmail using distribution technology to break Gmail's sending limits

Personalization

Personalize emails using Google Sheet columns with fallback values and auto-detection of names

Deliverability(9)

Block Handling Settings

Settings for handling blocks in campaigns and follow-ups

ColdSMTP Server

Game-changing cold email sending server for improved deliverability

Delivery Routes

Achieve perfect deliverability with delivery routes optimization

Email List Verification

Verify email lists and test links before sending to fix spam triggers

Inbox Rotation (MultiSend)

Rotate between multiple sending addresses to improve deliverability

Instant SMTP Approvals

Instant SMTP server approvals when you hit Gmail limits

Multiple SMTP Servers

Add multiple SMTP servers and easily pick which to use

Real-time SPF Checks

Real-time SPF checks when you send a campaign

Spam SolverAI

AI-powered suggestions to improve inbox deliverability and avoid spam folder

Integration(2)

API Access

API access for integrations and automation with Zapier

Mail Merge with Google Sheets

Read data live from any Google Sheet and send personalized emails, with automatic monitoring for new rows

Also in: monday.com, Notion, Airtable

List Management(3)

Dynamic Lists

Power campaigns with live Google Sheet data that updates automatically

Email List Builder

Find email addresses inside Gmail account by searching and build lists from existing contacts

Unsubscribe File Upload

Upload a file of unsubscribed addresses to suppress list

Also in: Klaviyo, LeadIQ, AWeber

Monitoring(1)

Real-time Sending Speed Monitor

Monitor your campaign sending speed in real time

Notifications(1)

text.email - Email-to-SMS Alerts

Send email-to-SMS alerts for campaign notifications

Optimization(1)

A/B Testing

Test different subject lines and content variations

Organization(1)

Template Management

Easily clean up and manage long list of email templates

Personalization(1)

Countdown Timer

Add a countdown timer to your campaign to create urgency

Reporting(1)

Email Reporting & Analytics

Campaign level reports showing opens, clicks, replies, and bounces viewable in Gmail desktop and mobile

Scheduling(2)

Campaign Daily End Time

Set a daily end time for your campaign sending

Default Timezone Setting

Set a default time zone for better campaign scheduling

Segmentation(1)

Behavior-based Campaigns

Send to segments of prior campaigns like everyone who opened or didn't click the last campaign

Team Management(1)

Team Unsubscribe and Bounce Management

View and manage unsubscribes and bounces for entire team

Tracking(3)

Custom Tracking Links with SSL

Create custom tracking links with SSL encryption for campaigns

Improved Open Rate Tracking

More accurate open rate detection and reporting

Instant Reply and Bounce Detection

Replies and bounces are detected instantly

Pricing

Standard

$29.95/mo or $249/year
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features

Premium

$39.95/mo or $349/year
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features

Professional

$59.95/mo or $599/year
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features

Team 5 Users

$175/month
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Team 10 Users

$295/month
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Team 25 Users

$725/month
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Team 50 Users

$1,350/month
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Team 100 Users

$2,200/month
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Premium Annual 5 Users

$145/mo ($1,750/year)
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Premium Annual 10 Users

$245/mo ($2,950/year)
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Premium Annual 25 Users

$604/mo ($7,250/year)
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Premium Annual 50 Users

$1,125/mo ($13,500/year)
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Premium Annual 100 Users

$1,833/mo ($22,000/year)
  • Works inside Gmail
  • Send unlimited emails
  • Unlimited contacts
  • Unlimited campaigns
  • Mail merge personalization
  • Free email address verification
  • Custom tracking links w/SSL
  • Spam Solver
  • Sequences and follow-ups
  • API access (+Zapier)
  • A/B testing
  • Triggered Emails
  • Inbox Rotation (MultiSend)
  • High-priority support
  • Email support
  • Hundreds of other features
  • Team collaboration features

Cost Calculator

Keep Paying GMass

Monthly$29.95/mo
Yearly$359/yr
5-Year Total$1.8k

Build It Yourself

Est. Build Time~3 hrs
Hosting$20/mo
DifficultyVery Easy

Total Cost Comparison

1 YearSave $119
SaaS
$359
DIY
$240
3 YearsSave $358
SaaS
$1.1k
DIY
$720
5 YearsSave $597
SaaS
$1.8k
DIY
$1.2k

DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 41 features at very easy complexity.

Build vs Buy

Should you build a GMass alternative or buy the subscription? Estimate based on 41 features.

Buy GMass

Better Value
Monthly cost$299.5/mo
3-year total$10,782
Time to deployDays

Build Your Own

Development cost$24,000
Maintenance$360/mo
3-year total$36,960
Dev time~2 months

Buying GMass saves ~$26,178 over 3 years vs building.

Estimates based on 41 features and a BuildScore of 5/5. Actual costs vary.

Integrations

4 known integrations

ChatGPTGmailGoogle SheetsZapier