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.
Insider
Insider is a cross-channel personalization platform that connects customer data across channels to predict future behavior and deliver individual experiences through AI-driven engagement and automation tools.
Quick Comparison
| Feature | GMass | Insider |
|---|---|---|
| Website | gmass.co | useinsider.com |
| Pricing Model | Freemium | Custom |
| Starting Price | Free | Custom Pricing |
| FREE Trial | ✘ No free trial | ✘ No 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 | 2012 |
| Headquarters | Chicago, USA | Singapore, Singapore |
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.
Insider
Insider helps you connect your customer data across every touchpoint to create a unified view of your audience. Instead of managing siloed information, you can use its Growth Management Platform to predict what your customers will do next using AI-driven intent engines. You can then trigger personalized journeys across web, mobile app, SMS, WhatsApp, and email from a single interface.
The platform is designed for mid-to-large scale digital marketing teams who need to increase conversion rates and lifetime value without manual segmentation. You can automate complex cross-channel workflows and deliver tailored product recommendations in real-time. It effectively replaces multiple point solutions by consolidating your marketing stack into one centralized hub for growth and retention.
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.
Insider Features
- Unified Data Profiles. Connect data from your website, app, and offline sources to build a 360-degree view of every individual customer.
- AI Intent Engine. Predict future behavior like likelihood to purchase or churn so you can target high-value segments before they leave.
- Cross-Channel Journeys. Design automated workflows that follow your customers across WhatsApp, SMS, email, and web push notifications seamlessly.
- Smart Recommendations. Show your visitors the most relevant products based on their browsing history and predicted interests in real-time.
- A/B Testing. Optimize your campaigns by testing different content and layouts to see exactly what drives the most conversions.
- WhatsApp Commerce. Turn your WhatsApp channel into a storefront where customers can browse products and complete purchases within the chat.
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
Insider Pricing
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
Insider
Pros
- Exceptional customer support with dedicated account managers
- Powerful cross-channel orchestration from a single dashboard
- Advanced AI capabilities for accurate predictive segmentation
- Fast implementation compared to other enterprise platforms
Cons
- Significant learning curve for the journey builder
- Pricing is high for smaller marketing budgets
- Occasional lag when loading large data segments