GMass
gmass.coBuild Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Easiest way to send an email campaign
How to Replace GMassOverview
Features
41 features across 18 categories
AI(3)
AI creates custom HTML email layouts automatically
Have ChatGPT write your campaigns for you
AI-powered automatic spintax that creates variations for every email in your campaign
Automation(7)
Set automatic follow-up sequences that send until recipient replies to boost response rates
Set a sending order to control which rows GMass emails first
Automatically categorize replies and bounces to prevent inbox clutter
Schedule mail merges for future times or set to repeat daily or hourly
Keep a strict count of days between auto follow-ups
Send triggered emails immediately when a prospect is in their inbox
Send unlimited automatic follow-up stages in sequences
CRM(1)
Free Google Sheets CRM made for GMass
Collaboration(1)
Reply to emails 10x faster with built-in reply tools
Core Functionality(2)
Send unlimited emails directly from Gmail using distribution technology to break Gmail's sending limits
Personalize emails using Google Sheet columns with fallback values and auto-detection of names
Deliverability(9)
Settings for handling blocks in campaigns and follow-ups
Game-changing cold email sending server for improved deliverability
Achieve perfect deliverability with delivery routes optimization
Verify email lists and test links before sending to fix spam triggers
Rotate between multiple sending addresses to improve deliverability
Instant SMTP server approvals when you hit Gmail limits
Add multiple SMTP servers and easily pick which to use
Real-time SPF checks when you send a campaign
AI-powered suggestions to improve inbox deliverability and avoid spam folder
Integration(2)
API access for integrations and automation with Zapier
Read data live from any Google Sheet and send personalized emails, with automatic monitoring for new rows
List Management(3)
Power campaigns with live Google Sheet data that updates automatically
Find email addresses inside Gmail account by searching and build lists from existing contacts
Upload a file of unsubscribed addresses to suppress list
Monitoring(1)
Monitor your campaign sending speed in real time
Notifications(1)
Send email-to-SMS alerts for campaign notifications
Optimization(1)
Test different subject lines and content variations
Organization(1)
Easily clean up and manage long list of email templates
Personalization(1)
Add a countdown timer to your campaign to create urgency
Reporting(1)
Campaign level reports showing opens, clicks, replies, and bounces viewable in Gmail desktop and mobile
Scheduling(2)
Set a daily end time for your campaign sending
Set a default time zone for better campaign scheduling
Segmentation(1)
Send to segments of prior campaigns like everyone who opened or didn't click the last campaign
Team Management(1)
View and manage unsubscribes and bounces for entire team
Tracking(3)
Create custom tracking links with SSL encryption for campaigns
More accurate open rate detection and reporting
Replies and bounces are detected instantly
Pricing
Standard
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
- ✓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
Build It Yourself
Total Cost Comparison
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 ValueBuild Your Own
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