GMass vs Mailarrow: Cold Email Platform Comparison
Compare GMass and Mailarrow side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
GMass and Mailarrow are both cold email outreach platforms, but they differ in approach. GMass works inside Gmail with unlimited emails, contacts, and campaigns starting at $29.95/mo, while Mailarrow offers unlimited email warmup and unlimited mailboxes starting at $39/mo. GMass suits budget conscious, Gmail based teams; Mailarrow suits teams needing broader integrations.
Key takeaways
- GMass starts at $29.95/mo for its Standard plan, while Mailarrow starts at $39/mo for its Basic plan.
- GMass offers four pricing tiers (Standard, Premium, Professional, Teams) topping out at $175/mo, while Mailarrow offers three tiers (Basic, Professional, Growth) topping out at $99/mo.
- Mailarrow's Basic plan caps usage at 2,000 active prospects and 6,000 emails, whereas GMass advertises unlimited contacts and emails subject to Gmail limits.
- GMass lists four integrations (Gmail, Google Sheets, Zapier, Google Workspace) compared to Mailarrow's five (Gmail, Outlook, Zoho, Zapier, TrulyInbox).
- Both platforms list 10 features each on their own pages, and both were compared as of September 2026 pricing.
Reviewed and updated September 2, 2026
GMass vs Mailarrow: Cold Email Platform Comparison
GMass and Mailarrow compete head-to-head in the cold email outreach space. This guide compares their pricing tiers, feature sets, and integration ecosystems to help you make a confident decision.
The Quick Answer
By each vendor's own wording, GMass lists works inside gmail and unlimited emails, contacts, and campaigns, while Mailarrow lists unlimited email warmup and unlimited mailboxes. A capability both offer can appear under different names, so read both feature lists below.
GMass offers a lower entry point at $29.95/mo compared to Mailarrow at $39/mo.
If your priority is sending campaigns that land in the inbox and generate replies, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
GMass is Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.
Mailarrow is Cold email outreach software with email warmup, AI personalization, unlimited sequences and unlimited connected mailboxes. Users bring their own mailboxes and prospect lists; Mailarrow does not sell leads or provide inboxes.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Standard
Basic
GMass Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Standard | $29.95/mo | Unlimited | Unlimited (Gmail limits apply) |
| Premium | $39.95/mo | Unlimited | Unlimited (Gmail limits apply) |
| Professional | $59.95/mo | Unlimited | Unlimited (Gmail limits apply) |
| Teams (5 users) | $175/mo | Unlimited | Unlimited (Gmail limits apply) |
Source: GMass Pricing
Mailarrow Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | $39/mo | 2,000 active prospects | 6,000 emails |
| Professional | $59/mo | 20,000 active prospects | 60,000 emails |
| Growth | $99/mo | 50,000 active prospects | 150,000 emails |
Source: Mailarrow Pricing
Pricing Analysis
GMass is more affordable at the entry level ($29.95/mo vs $39/mo). For teams with tight budgets or those just getting started with cold email outreach, this price difference matters.
GMass offers 4 pricing tiers compared to Mailarrow's 3, giving you more granularity as you scale.
Features Breakdown
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- A/B testing
- and 4 more listed below
- Unlimited Email Warmup
- Unlimited Mailboxes
- AI Personalization
- Sending mailbox rotation
- Detailed campaign analytics
- Bulk Prospects Import
- and 4 more listed below
GMass Key Features
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- A/B testing
- Spam Solver deliverability tool
- Custom tracking links
- Inbox rotation
- API and Zapier access
Mailarrow Key Features
- Unlimited Email Warmup
- Unlimited Mailboxes
- AI Personalization
- Sending mailbox rotation
- Detailed campaign analytics
- Bulk Prospects Import
- Custom properties
- Sending schedules
- Advanced tracking
- Reply tracking
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by GMass
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- A/B testing
- Spam Solver deliverability tool
- Custom tracking links
- Inbox rotation
- API and Zapier access
Listed only by Mailarrow
- Unlimited Email Warmup
- Unlimited Mailboxes
- AI Personalization
- Sending mailbox rotation
- Detailed campaign analytics
- Bulk Prospects Import
- Custom properties
- Sending schedules
- Advanced tracking
- Reply tracking
Integration Ecosystem
GMass Integrations
GMass connects with: Gmail, Google Sheets, Zapier, Google Workspace.
Mailarrow Integrations
Mailarrow connects with: Gmail, Outlook, Zoho, Zapier, TrulyInbox.
Shared Integrations
Both tools integrate with: Gmail, Zapier.
Integrations listed only by GMass: Google Sheets, Google Workspace.
Integrations listed only by Mailarrow: Outlook, Zoho, TrulyInbox.
Use Case Recommendations
Best Fit for GMass
- Budget-conscious teams looking for an affordable cold email platform
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
- SDR teams focused on pipeline generation
Best Fit for Mailarrow
- Budget-conscious teams looking for an affordable cold email platform
- Organizations with complex tech stacks needing broad integration support (5 integrations)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Feature Comparison Summary
| Feature | GMass | Mailarrow |
|---|---|---|
| Starting Price | $29.95/mo | $39/mo |
| Top Tier Price | $175/mo | $99/mo |
| Total Features Listed | 10 | 10 |
| Integrations | 4 | 5 |
| Founded | 2015 | N/A |
Getting Started Checklist
- Define your cold email outreach requirements and monthly budget
- Estimate your expected email sending volume to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
GMass and Mailarrow both serve the cold email outreach market. GMass offers a more accessible entry point at $29.95/mo, while Mailarrow starts at $39/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit GMass and Mailarrow for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, GMass or Mailarrow?
- GMass is cheaper at the entry level, starting at $29.95/mo compared to Mailarrow's $39/mo starting price. GMass also offers more pricing tiers, four versus Mailarrow's three, giving more granularity for teams scaling up, though its top tier at $175/mo is higher than Mailarrow's top tier at $99/mo.
- What is the main difference between GMass and Mailarrow?
- GMass is a Gmail based mass email and mail merge platform offering unlimited emails, campaigns, and contacts directly inside Gmail. Mailarrow is cold email outreach software built around email warmup, AI personalization, unlimited sequences, and unlimited connected mailboxes, where users bring their own mailboxes and prospect lists.
- Does Mailarrow limit the number of contacts or emails I can send?
- Yes, Mailarrow's plans are usage capped. The Basic plan allows 2,000 active prospects and 6,000 emails, Professional allows 20,000 prospects and 60,000 emails, and Growth allows 50,000 prospects and 150,000 emails. GMass, by contrast, advertises unlimited contacts and emails, subject to Gmail's own sending limits.
- What integrations do GMass and Mailarrow support?
- GMass connects with Gmail, Google Sheets, Zapier, and Google Workspace. Mailarrow connects with Gmail, Outlook, Zoho, Zapier, and TrulyInbox. Both tools share Gmail and Zapier integrations, while GMass adds Google specific tools and Mailarrow adds Outlook, Zoho, and TrulyInbox.
- Who should use GMass versus Mailarrow?
- GMass fits budget conscious teams, high volume outbound sales teams, agencies managing multiple client outreach programs, and SDR teams focused on pipeline generation. Mailarrow fits similar budget conscious and high volume outbound use cases, plus organizations with complex tech stacks that need broader integration support across five connected tools.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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