Software Alternatives & Startups

GMass VS Undersend

Compare GMass VS Undersend and see what are their differences

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!

Rating
0 reviews
Undersend

Send activities-based emails to your users to increase engagement and conversion rate.

Rating
0 reviews
Pricing
Freemium Free trial

Which is more popular?

Based on our record, GMass seems to be more popular. It has been mentioned 7 times since March 2021.

social mentions
7 vs 0
Email Marketing popularity
96% vs 4%
alternatives listed
240+ vs 13

Base details

Website, pricing, platforms and company facts side by side.

GMass
Undersend
Website gmass.co undersend.com
Pricing
Freemium Free trial Official pricing
Platforms
Browser
Company Startup from the United States 2020
Listed in

About GMass and Undersend

In their own words, as submitted to SaaSHub.

GMass
Undersend

No description of GMass yet.

With Undersend, you can create and send personalized marketing campaigns to your users based on their activities. You can trigger a message when a user does or doesn't do an action. Each email can be personalized by the user properties like first name, sign up date, or whatever you want....

Read more about Undersend

Features and specs

What each product offers, as listed by its team.

GMass 5 features
Undersend 5 features
  • 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

  • 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.
  • User-Friendly Interface
    Undersend offers a clean and intuitive user interface, making it easy for users to navigate and manage their email campaigns effectively.
  • Automation Capabilities
    The platform provides robust automation features, allowing users to set up automated email sequences and workflows, saving time and effort.
  • Advanced Analytics
    Undersend provides comprehensive analytics and reporting tools, helping users track email performance, open rates, and user engagement.
  • Integration Support
    The platform supports integration with various third-party applications, facilitating seamless data synchronization and workflow automation.
  • Customizable Templates
    Users have access to a range of customizable templates, enabling them to create visually appealing and branded email campaigns.

Possible disadvantages

  • Pricing
    The pricing structure of Undersend may be considered high for small businesses or startups with limited budgets.
  • Learning Curve
    Despite its user-friendly interface, some users may experience a learning curve when exploring more advanced features or integrations.
  • Limited Free Plan
    The free plan offered by Undersend has limitations on the number of emails and contacts, which may not suit the needs of larger email campaigns.
  • Customer Support
    Some users have reported that customer support can be slow to respond to queries or issues, potentially impacting time-sensitive campaigns.
  • Feature Set
    While Undersend covers essential email marketing features, some advanced functionalities available in competing platforms might be absent.

Analysis

An editorial look at what each product does well and who it suits.

GMass
Undersend

Overall verdict

  • GMass is generally considered to be a good tool for email marketing, especially for those who want a simple, effective solution that doesn't require managing a separate platform outside of Gmail. However, users looking for more advanced analytics or integration with non-Google services might find its capabilities limited compared to dedicated email marketing platforms.

Why this product is good

  • GMass is a popular email marketing tool integrated with Gmail that is particularly known for its ease of use, powerful features, and seamless integration with the Google ecosystem. It allows users to send mass emails, schedule campaigns, and track engagement directly from their Gmail account. Its features, such as automatic follow-ups, mail merge, and email personalization, make it appealing for both small and medium-sized businesses looking to streamline their email outreach efforts without the need for a separate marketing platform.

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.

Overall verdict

  • I don't have verified information about Undersend (undersend.com), so I can't confidently confirm whether it is a good service. You should evaluate it directly by reviewing its features, pricing, security practices, user reviews, and terms of service before committing.

Why this product is good

  • Unable to verify the company's track record or reputation from available information
  • Checking independent reviews and testimonials can reveal real user experiences
  • Assessing security, privacy policies, and data handling practices helps confirm trustworthiness
  • Comparing its features and pricing against established competitors provides useful context
  • Testing a free trial or starter plan, if available, lets you evaluate it with low risk

Recommended for

  • Users who have independently verified the service meets their needs
  • People willing to test the platform through a trial before full commitment
  • Customers who have read recent, credible third-party reviews
  • Those who have confirmed the service's security and privacy standards

Videos

Walkthroughs and reviews on video.

GMass 3 videos + Add
Undersend 0 videos + Add

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

More videos

  • - Gmass Review and Tutorial 2020
  • - GMass Review - How to Send Bulk Email With Gmail

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

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
GMass
Undersend
96% 96%
4% 4%
0% 0%
100% 100%
100% 100%
0% 0%

User comments

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

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

GMass no reviews yet
Undersend no reviews yet
  • BuzzStream for Outreach Campaigns: 2025 Review
    woodpecker.co · Jan 2025

    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...

  • The 24 Best Email Marketing Tools
    webbiquity.com · Aug 2022

    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...

  • 23 Best Cold Email WarmUp Tools in 2022 (Free + Paid)
    inguide.in · Jun 2022

    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,...

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

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

GMass 7 mentions
Undersend 0 mentions
  • 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: over 3 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... Source: over 3 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: about 4 years ago

View more

Tracking Undersend since Mar 2021.

Alternatives to GMass and Undersend

When comparing GMass and Undersend, you can also consider the following products.