GMass VS InboxSDK

Compare GMass VS InboxSDK and see what are their differences

InboxAlly

Enterprise Email Warmup. Sender Domain Reputation Repair Tool to get out of spam and see open rates more than double in 4 to 14 days. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder. featured

Contents:

» Base Details
» Videos
» Reviews
» Alternatives

GMass

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!

InboxSDK

First usable API to write Gmail Apps for 1B active users

Landing page //
2023-05-11

Landing page //
2023-05-12

GMass

Website: gmass.co
Pricing URL: Official GMass Pricing

Edit details

InboxSDK

Website: inboxsdk.com
Pricing URL: Official InboxSDK Pricing

Edit details

GMass features and specs

Ease of Use
GMass is designed with a user-friendly interface, which makes it accessible even to those with limited technical skills. The integration with Gmail allows users to leverage the platform via their familiar email environment.
Email Personalization
With GMass, users can personalize mass emails with individual names and other custom fields, increasing engagement and response rates.
Advanced Analytics
GMass provides detailed analytics and reporting. Users can track open rates, click rates, and bounce rates, providing valuable insights into campaign performance.
Automation Features
The tool offers robust automation capabilities, such as automated follow-ups and scheduled email campaigns, which save time and increase efficiency.
Affordability
GMass is relatively affordable compared to other email marketing tools, offering good value for small businesses and individuals.

Possible disadvantages of GMass

Gmail Dependency
GMass exclusively works with Gmail. This limits its usability for businesses or individuals who prefer other email platforms or require multichannel marketing solutions.
Limitations on Email Volume
There are daily sending limits due to Gmail's sending limits. Users with large email lists might find this restrictive.
Potential for Spam Classification
Sending large numbers of emails through GMass increases the risk of being marked as spam, especially if best practices for email marketing aren't strictly followed.
Limited Customer Support
While GMass provides support, it may not be as comprehensive or readily available as some other premium email marketing tools, potentially leading to delays in resolving issues.
Learning Curve for Advanced Features
While basic functionalities are easy to use, there is a learning curve associated with mastering more advanced features and settings, which might deter some users.

InboxSDK features and specs

No features have been listed yet.

GMass videos

+ Add

GMass Review and Tutorial: How To Send Thousands of Emails in Minutes

InboxSDK videos

No InboxSDK videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to GMass and InboxSDK)

GMass

InboxSDK

Email Marketing

94 94%

Email Marketing

6% 6

84 84%

16% 16

100 100%

0% 0

Productivity

0 0%

Productivity

100% 100

User comments

Share your experience with using GMass and InboxSDK. For example, how are they different and which one is better?

Reviews

These are some of the external sources and on-site user reviews we've used to compare GMass and InboxSDK

GMass Reviews

BuzzStream for Outreach Campaigns: 2025 Review

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 email outreach efficiently.

Source: woodpecker.co

The 24 Best Email Marketing Tools

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 opens and clicks, manage unsubscribes, and send automated follow up messages.

Source: webbiquity.com

23 Best Cold Email WarmUp Tools in 2022 (Free + Paid)

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, which means it won’t work or be less effective with other providers.All you to go to GMass official website, and signup then start your journey.

Source: inguide.in

InboxSDK Reviews

We have no reviews of InboxSDK yet.
Be the first one to post

Social recommendations and mentions

Based on our record, GMass seems to be more popular. It has been mentiond 7 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

GMass mentions (7)

Easiest way to automate e-mails? (Newbie question)
If you have Gmail or Gsuite, try GMass - gmass.co. Cheap, easy, and uses your email address, so not spam filtering. Source: about 2 years ago
Doesn’t seem worth it to switch from gmail if this happens
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 from within protonmail.com, it ends up in Spam. Source: over 2 years ago
"Closing" isn't in the subject line and "If you want my help launching..." wasn't in the body of the email. How did they do this?
You can use gmass.co to achieve this with gmail You can use inboxpirates to check how it looks on different email clients. Source: over 2 years ago
Calling all small businesses!
To send emails you can use Gmass, I preffer GBeast because it allows to send from multiple Gmail and G-Suite accounts and supports proxies to avoid the Google hammer. Source: almost 3 years ago
What are the best Gmail extensions you've ever used?
On my end, vocal.email and gmass.co are extensions I use daily :). Source: about 3 years ago