GMass vs Salesflow: Cold Email Platform vs Sales Engagement Platform Comparison
Compare GMass (cold email platform) and Salesflow (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
GMass is a Gmail-based cold email platform starting at $29.95 per month with unlimited emails, contacts, and campaigns, while Salesflow is a multichannel sales engagement platform starting at $99 per month combining email and LinkedIn outreach with a unified inbox. GMass suits inbox-focused cold email sending; Salesflow suits teams coordinating outreach across email, phone, and social channels, and many teams use both.
Key takeaways
- GMass's Standard plan costs $29.95 per month while Salesflow's Basic plan costs $99 per month.
- GMass offers 4 pricing tiers while Salesflow offers 5 pricing tiers.
- GMass's Teams plan for 5 users costs $175 per month.
- Both platforms integrate with Zapier, but GMass also connects to Gmail, Google Sheets, and Google Workspace, and Salesflow also connects to HubSpot and LinkedIn Sales Navigator.
- Salesflow lists Ariel, described as its AI GTM employee, as a feature, while GMass lists a Spam Solver deliverability tool instead.
Reviewed and updated September 5, 2026
GMass vs Salesflow: Cold Email Platform vs Sales Engagement Platform Comparison
GMass (cold email platform) and Salesflow (sales engagement platform) sit next to each other in many outbound stacks. They are not substitutes for each other on every job, so this comparison covers pricing, features, and integrations for each and points out where the two meet.
The Quick Answer
GMass is a cold email platform for cold email outreach; Salesflow is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, GMass lists works inside gmail and unlimited emails, contacts, and campaigns, and Salesflow lists multichannel dynamic outreach that adapts to prospect behaviour and combined email and linkedin campaigns.
GMass offers a lower entry point at $29.95/mo compared to Salesflow at $99/mo.
If your priority is sending campaigns that land in the inbox and generate replies, GMass is the one built for it; for coordinating outreach across email, phone, and social channels, that is Salesflow. Many teams run one of each.
Understanding the Core Difference
GMass is Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.
Salesflow is Social and email outreach platform that combines LinkedIn and email into adaptive multichannel campaigns, with a unified inbox, condition-based sequences and cross-channel campaign reporting.
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
Salesflow Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Basic | $99/mo | Team size: 1+ users, minimum 1 seat |
| Starter | $70/mo | Team size: 5+ seats |
| Pro | $39.95/mo | Team size: 20+ seats |
| Agency | $29.98/mo | Team size: 50+ seats, seats added in batches of 5 |
| Enterprise | $24.99/mo | Team size: 100+ seats, seats added in batches of 10 |
Source: Salesflow Pricing
Pricing Analysis
GMass is more affordable at the entry level ($29.95/mo vs $99/mo). For teams with tight budgets or those just getting started with cold email outreach and multi-channel sales outreach and engagement tracking, this price difference matters.
Salesflow offers 5 pricing tiers compared to GMass's 4, 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
- Multichannel dynamic outreach that adapts to prospect behaviour
- Combined email and LinkedIn campaigns
- Unified inbox for LinkedIn and Sales Navigator conversations
- Inbox management with reminders, snooze and scheduled sending
- Campaign intelligence and analytics across LinkedIn and email
- Ariel, the Salesflow AI GTM employee
- 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
Salesflow Key Features
- Multichannel dynamic outreach that adapts to prospect behaviour
- Combined email and LinkedIn campaigns
- Unified inbox for LinkedIn and Sales Navigator conversations
- Inbox management with reminders, snooze and scheduled sending
- Campaign intelligence and analytics across LinkedIn and email
- Ariel, the Salesflow AI GTM employee
- Whitelabel URL and access customisation
- UI customisation with your own branding
- API access
- Early feature access on higher tiers
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 Salesflow
- Multichannel dynamic outreach that adapts to prospect behaviour
- Combined email and LinkedIn campaigns
- Unified inbox for LinkedIn and Sales Navigator conversations
- Inbox management with reminders, snooze and scheduled sending
- Campaign intelligence and analytics across LinkedIn and email
- Ariel, the Salesflow AI GTM employee
- Whitelabel URL and access customisation
- UI customisation with your own branding
- API access
- Early feature access on higher tiers
Integration Ecosystem
GMass Integrations
GMass connects with: Gmail, Google Sheets, Zapier, Google Workspace.
Salesflow Integrations
Salesflow connects with: HubSpot, LinkedIn Sales Navigator, Zapier, API.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by GMass: Gmail, Google Sheets, Google Workspace.
Integrations listed only by Salesflow: HubSpot, LinkedIn Sales Navigator, API.
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 Salesflow
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
- Revenue teams coordinating email, phone, and social touches
Feature Comparison Summary
| Feature | GMass | Salesflow |
|---|---|---|
| Starting Price | $29.95/mo | $99/mo |
| Top Tier Price | $175/mo | $24.99/mo |
| Total Features Listed | 10 | 10 |
| Integrations | 4 | 4 |
| Founded | 2015 | N/A |
Getting Started Checklist
- Define your cold email outreach and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected email sending volume and sequences and engagement actions 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 serves the cold email outreach side of an outbound stack and Salesflow the multi-channel sales outreach and engagement tracking side. GMass offers a more accessible entry point at $29.95/mo, while Salesflow starts at $99/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 Salesflow for current information.
Frequently asked questions.
Frequently asked questions- Is GMass cheaper than Salesflow?
- Yes, GMass's entry plan is $29.95 per month compared to Salesflow's entry plan at $99 per month. GMass also has a lower-cost Teams plan for 5 users at $175 per month, while Salesflow's per-seat pricing drops as team size grows, reaching $24.99 per month at the Enterprise tier for 100 or more seats.
- What is the main difference between GMass and Salesflow?
- GMass is a Gmail-based mass email and mail merge platform built for cold email outreach directly inside Gmail, while Salesflow is a multichannel outreach platform that combines LinkedIn and email into adaptive campaigns with a unified inbox and cross-channel reporting. They target different jobs in the outbound stack.
- Which tool is better for LinkedIn outreach?
- Salesflow is built for LinkedIn outreach, offering combined email and LinkedIn campaigns along with a unified inbox for LinkedIn and Sales Navigator conversations. GMass does not list LinkedIn features and is focused on cold email sent through Gmail.
- Do GMass and Salesflow use the same integrations?
- They share Zapier as a common integration, but otherwise differ. GMass also connects with Gmail, Google Sheets, and Google Workspace, while Salesflow also connects with HubSpot, LinkedIn Sales Navigator, and its own API.
- Can a team use both GMass and Salesflow?
- Yes, the article notes that many teams run one of each. GMass handles inbox-focused cold email campaigns while Salesflow coordinates outreach across email, phone, and social channels, so the two tools can complement rather than replace each other.
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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