GMass
GMass is a powerful email marketing and cold email solution that works directly inside your Gmail account to help you send mass campaigns and automated follow-ups easily.
Litmus
Litmus is an email marketing platform that allows you to build, test, and analyze high-performing email campaigns across every device and client to ensure a perfect subscriber experience.
Quick Comparison
| Feature | GMass | Litmus |
|---|---|---|
| Website | gmass.co | litmus.com |
| Pricing Model | Freemium | Subscription |
| Starting Price | Free | $99/month |
| FREE Trial | ✘ No free trial | ✓ 7 days free trial |
| Free Plan | ✓ Has free plan | ✘ No free plan |
| Product Demo | ✓ Request demo here | ✓ Request demo here |
| Deployment | ||
| Integrations | ||
| Target Users | ||
| Target Industries | ||
| Customer Count | 0 | 0 |
| Founded Year | 2015 | 2005 |
| Headquarters | Chicago, USA | Boston, USA |
Overview
GMass
GMass turns your regular Gmail or Google Workspace account into a full-featured email marketing platform. You can send mass emails, create complex mail merges using Google Sheets data, and schedule automated follow-up sequences that stop once a recipient replies. It lives entirely inside your Gmail interface, so you don't have to learn a new dashboard or export your contacts to external software.
You can use it to bypass Gmail's sending limits by connecting to external SMTP services or stay within standard limits for smaller outreach. It solves the problem of low engagement by making every mass email look like a personal, one-on-one message. Whether you are a recruiter, salesperson, or non-profit organizer, you can manage your entire outreach strategy without ever leaving your inbox.
Litmus
Litmus provides you with a comprehensive environment to create, test, and analyze your email campaigns before they reach your subscribers' inboxes. You can catch broken links, missing images, or formatting issues across more than 100 different email clients and devices instantly. This ensures your brand looks professional every time you hit send, regardless of whether your customer is using an old version of Outlook or the latest iPhone.
The platform simplifies your entire production workflow by offering collaborative building tools and automated QA checklists. You can also track how your audience interacts with your emails through advanced analytics that go beyond simple open rates. Whether you are a solo marketer or part of a large enterprise agency, you can use these insights to refine your strategy and improve your return on investment.
Overview
GMass Features
- Google Sheets Integration Connect your spreadsheets directly to Gmail to personalize every email with custom data fields from your rows.
- Automated Follow-ups Set up a sequence of emails that send automatically until your recipient replies, clicks, or opens your message.
- Email Reporting Track opens, clicks, and replies in real-time with detailed analytics reports generated right inside your Gmail account.
- Behavior-based Campaigns Send new emails specifically to people who opened or clicked your previous messages to maximize your conversion rates.
- Scheduling Draft your emails now and schedule them to go out at the exact time your prospects are most active.
- List Segmentation Filter your mailing lists based on past engagement to ensure you only message the most relevant contacts.
Litmus Features
- Email Previews. View your email exactly as it appears across 100+ popular email clients and devices to ensure perfect rendering.
- Visual Editor. Build and edit your emails in real-time using a code editor or visual interface that syncs with your ESP.
- Spam Testing. Scan your emails against major spam filters to identify issues that might prevent your messages from reaching the inbox.
- Automated QA Checklist. Verify that all your links, images, and tracking codes work correctly before you send your campaign.
- Email Analytics. Discover which devices your subscribers use and how long they spend reading your emails with advanced engagement tracking.
- Proof and Collaboration. Streamline your review process by letting teammates leave comments and approvals directly on your email designs.
Pricing Comparison
GMass Pricing
- Up to 50 emails per day
- All standard features included
- Gmail-based sending
- Basic campaign tracking
- GMass branding on emails
- Everything in Free, plus:
- Unlimited email sending
- No GMass branding
- Basic mail merge features
- Address verification tool
- Email support
Litmus Pricing
- 1 user seat
- Email previews
- Litmus Builder
- Basic spam testing
- Email analytics
- Unlimited read-only users
- Everything in Basic, plus:
- Up to 5 user seats
- Editor integrations
- Advanced spam testing
- Litmus Proof collaboration
- CRM and ESP integrations
Pros & Cons
GMass
Pros
- No new software to learn since it lives in Gmail
- Powerful Google Sheets integration for easy personalization
- Reliable automated follow-up sequences increase reply rates
- High deliverability by using Google's own mail servers
- Simple setup process takes less than a minute
Cons
- Requires Google Chrome to use the browser extension
- Interface can feel cluttered inside the Gmail window
- Daily sending limits are tied to Google's restrictions
Litmus
Pros
- Extensive range of email client previews
- Saves significant time on manual testing
- Integrates directly with popular email providers
- Detailed analytics on subscriber engagement levels
- User-friendly interface for non-technical team members
Cons
- High starting price for small businesses
- Occasional slow loading times for previews
- Limited features on the entry-level plan