
Scrimba
Codédex
GoIT LMS
Refocus
Treehouse
CodeCrafters
Divize
A better way to support developers

MailChimp
Constant Contact
Brevo
Campaign Monitor
AWeber
Robly
Salesforce Email Studio
GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
Which is more popular?
Based on our record, GMass seems to be more popular. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | dataprotocol.com | gmass.co |
| Pricing | — | |
| Company | — | Startup from the United States |
| Listed in |
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
GMass is recommended for individuals, small businesses, and startups who primarily use Gmail and are looking for a straightforward, cost-effective way to manage email campaigns. It is excellent for those who need to send personalized emails, automate follow-ups, and track basic metrics without extensive setup or learning curves.
Walkthroughs and reviews on video.
Sven Mawson - Evolution of the Google Data Protocol
GMass Review and Tutorial: How To Send Thousands of Emails in Minutes
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Data Protocol and GMass. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Data Protocol yet. Be the first one to post
GMass is a mail merge tool designed for mass email campaigns directly from your Gmail inbox. With advanced features like automated follow-ups, segmentation, and A/B testing, GMass enables users to manage and optimize...
Gmass is a powerful mail merge and follow-up email service for Gmail. Connect to Google Sheets to send personalized mass emails; send emails to selected recipients as new messages or replies; schedule emails, track...
GMass is an email marketing warm up software based around Google’s Gmail services.it’s an Open source email warmup, where you can enjoy all exciting and useful tools for free.GMass is an all-in-one Gmail solution,...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Data Protocol since Oct 2023.
If you have Gmail or Gsuite, try GMass - gmass.co. Cheap, easy, and uses your email address, so not spam filtering. Source: over 3 years ago
I did some tests today at gmass.co using my [xxx@pm.me](mailto:xxx@pm.me) email address and any of the many @pm.me emails I use go directly to the Primary Inbox on the tests. Whenever I use one of my authorized domains, even sending it... Source: over 3 years ago
You can use gmass.co to achieve this with gmail You can use inboxpirates to check how it looks on different email clients. Source: about 4 years ago
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