Revenue.io vs SendFlock: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Revenue.io (sales engagement platform) and SendFlock (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Compare Revenue.io (sales engagement platform) and SendFlock (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reviewed and updated September 4, 2026
Revenue.io vs SendFlock: Sales Engagement Platform vs Cold Email Platform Comparison
Revenue.io (sales engagement platform) and SendFlock (cold email 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
Revenue.io is a sales engagement platform for multi-channel sales outreach and engagement tracking; SendFlock is a cold email platform for cold email outreach. By each vendor's own wording, Revenue.io lists salesforce-native dialer with auto-logged calls and power, preview and auto dialing modes, and SendFlock lists unlimited mailboxes and unlimited email warm up.
SendFlock publishes an entry price of $29/mo; Revenue.io uses custom pricing, so the two cannot be compared on list price.
If your priority is coordinating outreach across email, phone, and social channels, Revenue.io is the one built for it; for sending campaigns that land in the inbox and generate replies, that is SendFlock. Many teams run one of each.
Understanding the Core Difference
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.
SendFlock is Cold email software for agencies and lean lead gen teams that bundles email warmup, automated follow-up sequences, email rotation across unlimited mailboxes, a unified inbox and a simple CRM in one tool.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Activate
Solo
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
SendFlock Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Solo | $29/mo | 10,000 prospect limit; unlimited email accounts | 60,000 emails monthly; unlimited email warmup |
| Growth | $49/mo | 30,000 prospect limit; unlimited email accounts | 30,000 emails monthly; unlimited email warmup |
| Scale | $99/mo | 100,000 prospect limit; unlimited email accounts | Card prints both No monthly sending limit and 12,000 emails monthly |
| Custom plan | Contact Sales | More than 30,000 prospects or custom needs | Not published |
Source: SendFlock 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.
SendFlock offers 4 pricing tiers compared to Revenue.io's 3, giving you more granularity as you scale.
Features Breakdown
- 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
- Unlimited Mailboxes
- Unlimited Email Warm Up
- Unified Inbox
- Follow Up Sequences
- A/B Testing
- Email Rotation
- and 4 more listed below
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
SendFlock Key Features
- Unlimited Mailboxes
- Unlimited Email Warm Up
- Unified Inbox
- Follow Up Sequences
- A/B Testing
- Email Rotation
- Global Block List
- Workflow Automation
- Bounce detection
- CRM
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 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
Listed only by SendFlock
- Unlimited Mailboxes
- Unlimited Email Warm Up
- Unified Inbox
- Follow Up Sequences
- A/B Testing
- Email Rotation
- Global Block List
- Workflow Automation
- Bounce detection
- CRM
Integration Ecosystem
Revenue.io Integrations
Revenue.io connects with: Salesforce, HubSpot, Microsoft Teams, Microsoft Outlook, Zoom, Gmail, Google Meet, Google Calendar, LinkedIn.
SendFlock Integrations
SendFlock connects with: Gmail, Gsuite, Outlook, Zoho, Custom SMTP/IMAP, Zapier.
Shared Integrations
Both tools integrate with: Gmail.
Integrations listed only by Revenue.io: Salesforce, HubSpot, Microsoft Teams, Microsoft Outlook, Zoom, Google Meet, Google Calendar, LinkedIn.
Integrations listed only by SendFlock: Gsuite, Outlook, Zoho, Custom SMTP/IMAP, Zapier.
Use Case Recommendations
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
Best Fit for SendFlock
- Budget-conscious teams looking for an affordable cold email platform
- Enterprise buyers who prefer custom pricing and dedicated support
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Feature Comparison Summary
| Feature | Revenue.io | SendFlock |
|---|---|---|
| Starting Price | Contact Sales | $29/mo |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 9 | 6 |
| Founded | 2012 | N/A |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and cold email outreach requirements and monthly budget
- Estimate your expected sequences and engagement actions and 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
Revenue.io serves the multi-channel sales outreach and engagement tracking side of an outbound stack and SendFlock the cold email outreach side. SendFlock publishes an entry price of $29/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 Revenue.io and SendFlock for current information.
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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