MailRush.io vs Revenue.io: Cold Email Platform vs Sales Engagement Platform Comparison
Compare MailRush.io (cold email platform) and Revenue.io (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
MailRush.io is a cold email platform starting at $19/mo with unlimited senders and unlimited email warming, built for cold email outreach. Revenue.io is a Salesforce-native sales engagement platform with custom pricing, offering a dialer, real-time call guidance, and multi-channel cadences. They serve different jobs, and many teams run both together rather than choosing one over the other.
Key takeaways
- MailRush.io's Starter plan costs $19/mo and includes up to 1,000 contacts with up to 5,000 emails per month and up to 1,000 emails per day.
- MailRush.io's Scale plan costs $99/mo and supports up to 50,000 contacts with up to 25,000 emails per month and up to 3,000 emails per day.
- Revenue.io uses custom pricing across its Activate, Engage, and Orchestrate plans, all built for Salesforce teams of 15 or more seats.
- Revenue.io offers local presence dialing in more than 40 countries and Moments real-time call guidance with battlecards and objection cues.
- MailRush.io integrates with SMTP, IMAP, Zapier, and Webhooks, while Revenue.io integrates with Salesforce, HubSpot, Microsoft Teams, Zoom, and Gmail among others.
Reviewed and updated September 2, 2026
MailRush.io vs Revenue.io: Cold Email Platform vs Sales Engagement Platform Comparison
MailRush.io (cold email platform) and Revenue.io (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
MailRush.io is a cold email platform for cold email outreach; Revenue.io is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, MailRush.io lists unlimited senders and unlimited email warming, and Revenue.io lists salesforce-native dialer with auto-logged calls and power, preview and auto dialing modes.
MailRush.io publishes an entry price of $19/mo; Revenue.io uses custom pricing, so the two cannot be compared on list price.
If your priority is sending campaigns that land in the inbox and generate replies, MailRush.io is the one built for it; for coordinating outreach across email, phone, and social channels, that is Revenue.io. Many teams run one of each.
Understanding the Core Difference
MailRush.io is Cold email software that automates outreach and multi-step follow-ups from your own SMTP/IMAP mailboxes or MailRush-provided sending accounts. Email warmup and email validation are included in every plan.
Revenue.io is Salesforce-native revenue platform that combines dialing, real-time coaching, conversation intelligence and guided-selling cadences across call, email and SMS, with every interaction logged in Salesforce.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Activate
MailRush.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $19/mo | Up to 1,000 contacts | Up to 5,000 emails per month; up to 1,000 emails per day |
| Pro | $39/mo | Up to 30,000 contacts | Up to 10,000 emails per month; up to 1,500 emails per day |
| Scale | $99/mo | Up to 50,000 contacts | Up to 25,000 emails per month; up to 3,000 emails per day |
Source: MailRush.io Pricing
Revenue.io Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Activate | Contact Sales | Built for Salesforce teams of 15+ seats |
| Engage | Contact Sales | Built for Salesforce teams of 15+ seats |
| Orchestrate | Contact Sales | Built for Salesforce teams of 15+ seats |
Source: Revenue.io Pricing
Pricing Analysis
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
Features Breakdown
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- and 5 more listed below
- Salesforce-native dialer with auto-logged calls
- Power, preview and auto dialing modes
- Local presence dialing in 40+ countries
- Moments real-time call guidance with battlecards and objection cues
- Live listen, whisper and call monitoring
- Guided Selling cadences
- and 4 more listed below
MailRush.io Key Features
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- Email follow-ups
- Suppression list
- Email copy spam assessment
- Email personalization
- Unsubscription automation
Revenue.io Key Features
- Salesforce-native dialer with auto-logged calls
- Power, preview and auto dialing modes
- Local presence dialing in 40+ countries
- Moments real-time call guidance with battlecards and objection cues
- Live listen, whisper and call monitoring
- Guided Selling cadences
- Email and SMS sequencing
- AI-assisted email drafting
- Conversation intelligence with talk metrics and sentiment analysis
- Deal Health Scores and Revenue Intelligence dashboards
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 MailRush.io
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- Email follow-ups
- Suppression list
- Email copy spam assessment
- Email personalization
- Unsubscription automation
Listed only by Revenue.io
- Salesforce-native dialer with auto-logged calls
- Power, preview and auto dialing modes
- Local presence dialing in 40+ countries
- Moments real-time call guidance with battlecards and objection cues
- Live listen, whisper and call monitoring
- Guided Selling cadences
- Email and SMS sequencing
- AI-assisted email drafting
- Conversation intelligence with talk metrics and sentiment analysis
- Deal Health Scores and Revenue Intelligence dashboards
Integration Ecosystem
MailRush.io Integrations
MailRush.io connects with: SMTP, IMAP, Zapier, Webhooks.
Revenue.io Integrations
Revenue.io connects with: Salesforce, HubSpot, Microsoft Teams, Microsoft Outlook, Zoom, Gmail, Google Meet, Google Calendar, LinkedIn.
Integrations listed only by MailRush.io: SMTP, IMAP, Zapier, Webhooks.
Integrations listed only by Revenue.io: Salesforce, HubSpot, Microsoft Teams, Microsoft Outlook, Zoom, Gmail, Google Meet, Google Calendar, LinkedIn.
Use Case Recommendations
Best Fit for MailRush.io
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (11 capabilities listed)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Best Fit for Revenue.io
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
Feature Comparison Summary
| Feature | MailRush.io | Revenue.io |
|---|---|---|
| Starting Price | $19/mo | Contact Sales |
| Top Tier Price | $99/mo | Contact Sales |
| Total Features Listed | 11 | 10 |
| Integrations | 4 | 9 |
| Founded | N/A | 2012 |
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
MailRush.io serves the cold email outreach side of an outbound stack and Revenue.io the multi-channel sales outreach and engagement tracking side. MailRush.io publishes an entry price of $19/mo, while Revenue.io uses custom pricing for its plans, so compare on features and on the quote you receive. 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 MailRush.io and Revenue.io for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between MailRush.io and Revenue.io?
- MailRush.io is a cold email platform focused on automating email outreach and follow-ups from SMTP or IMAP mailboxes, with email warmup and validation included on every plan. Revenue.io is a Salesforce-native revenue platform combining dialing, coaching, conversation intelligence, and cadences across call, email, and SMS, with interactions logged in Salesforce.
- How much does MailRush.io cost compared to Revenue.io?
- MailRush.io publishes an entry price of $19/mo for its Starter plan. Revenue.io does not publish list pricing and instead uses custom, contact-sales pricing across its Activate, Engage, and Orchestrate plans, which are built for Salesforce teams of 15 or more seats, so the two cannot be directly compared on list price.
- Can MailRush.io and Revenue.io be used together?
- Yes, many teams run one of each since they solve different parts of outbound outreach. MailRush.io handles cold email campaigns and inbox deliverability, while Revenue.io coordinates multi-channel sales engagement including dialing, email, and SMS with tracking logged in Salesforce.
- What integrations does each platform support?
- MailRush.io connects with SMTP, IMAP, Zapier, and Webhooks. Revenue.io connects with Salesforce, HubSpot, Microsoft Teams, Microsoft Outlook, Zoom, Gmail, Google Meet, Google Calendar, and LinkedIn.
- Which platform is better for cold email outreach specifically?
- MailRush.io is built specifically for cold email outreach, with features like unlimited senders, unlimited email warming, email validation, and spam assessment included in every plan. Revenue.io is designed for broader sales engagement across call, email, and social channels rather than cold email alone.
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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