Warmup Inbox vs Woodpecker: Email Warmup Tool vs Cold Email Platform Comparison
Compare Warmup Inbox (email warmup tool) and Woodpecker (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Warmup Inbox is an email warmup tool for domain warming and deliverability, starting at $19/mo, while Woodpecker is a cold email platform with usage-based pricing that includes unlimited team members and unlimited email accounts. They serve different parts of the outbound workflow, so many teams run both together rather than choosing one over the other.
Key takeaways
- Warmup Inbox starts at $19/mo for its Basic plan, which includes 75 warmup messages per day, and scales up to $99/mo for 1,000 warmup messages per day on the Max plan.
- Woodpecker uses usage-based pricing with a single Pay as you go plan rather than tiered pricing.
- Warmup Inbox exchanges email with a network of more than 30,000 real inboxes to build sender reputation automatically.
- Warmup Inbox integrates with Gmail and Workspace, Outlook and Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue, and any SMTP inbox, totaling 8 integrations.
- Woodpecker integrates with HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Google Sheets, Calendly, and Slack, totaling 9 integrations.
Reviewed and updated September 2, 2026
Warmup Inbox vs Woodpecker: Email Warmup Tool vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh Warmup Inbox, an email warmup tool for email domain warming and deliverability, against Woodpecker, a cold email platform for cold email outreach. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
Warmup Inbox is an email warmup tool for email domain warming and deliverability; Woodpecker is a cold email platform for cold email outreach. By each vendor's own wording, Warmup Inbox lists email warmup and cold email sequence, and Woodpecker lists unlimited team members and unlimited email accounts.
Warmup Inbox publishes an entry price of $19/mo; Woodpecker uses usage-based pricing, so the two cannot be compared on list price.
If your priority is building sender reputation and improving inbox placement, Warmup Inbox is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Woodpecker. Many teams run one of each.
Understanding the Core Difference
Warmup Inbox is Email warmup service that exchanges natural-looking email with a network of more than 30,000 real inboxes to build sender reputation automatically. Also offers cold email sequences, language warmup, ESP warmup and IP warmup from the same dashboard.
Woodpecker is Cold email automation platform with prospect-based pricing, unlimited team members, unlimited email accounts, and built-in email warmup.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Basic
Pay as you go
Warmup Inbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | $19/mo | per inbox | 75 warmup messages/day |
| Pro | $59/mo | per inbox | 250 warmup messages/day |
| Max | $99/mo | per inbox | 1,000 warmup messages/day |
| For agencies & teams | Contact Sales | Custom plans starting at 15 inboxes | custom |
Source: Warmup Inbox Pricing
Woodpecker Pricing (as of September 2026)
| Plan | Price |
|---|---|
| Pay as you go | Usage-based |
Source: Woodpecker 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.
Warmup Inbox offers 4 pricing tiers compared to Woodpecker's 1, giving you more granularity as you scale.
Features Breakdown
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- and 3 more listed below
- Unlimited team members
- Unlimited email accounts
- Email warmup included
- Catch-all email verification
- A/B testing
- Condition-based campaigns
- and 4 more listed below
Warmup Inbox Key Features
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- Email reputation Check
- Human-like AI generated content
- Developers API
Woodpecker Key Features
- Unlimited team members
- Unlimited email accounts
- Email warmup included
- Catch-all email verification
- A/B testing
- Condition-based campaigns
- Adaptive sending
- LinkedIn automation (add-on)
- API and integrations (add-on)
- Agency panel (add-on)
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 Warmup Inbox
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- Email reputation Check
- Human-like AI generated content
- Developers API
Listed only by Woodpecker
- Unlimited team members
- Unlimited email accounts
- Email warmup included
- Catch-all email verification
- A/B testing
- Condition-based campaigns
- Adaptive sending
- LinkedIn automation (add-on)
- API and integrations (add-on)
- Agency panel (add-on)
Integration Ecosystem
Warmup Inbox Integrations
Warmup Inbox connects with: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Woodpecker Integrations
Woodpecker connects with: HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Google Sheets, Calendly, Slack.
Integrations listed only by Warmup Inbox: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Integrations listed only by Woodpecker: HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Google Sheets, Calendly, Slack.
Use Case Recommendations
Best Fit for Warmup Inbox
- Budget-conscious teams looking for an affordable email warmup tool
- Enterprise buyers who prefer custom pricing and dedicated support
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Best Fit for Woodpecker
- Teams that need a wide feature set (10 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Warmup Inbox | Woodpecker |
|---|---|---|
| Starting Price | $19/mo | Usage-based |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 9 | 10 |
| Integrations | 8 | 9 |
| Founded | N/A | 2015 |
Getting Started Checklist
- Define your email domain warming and deliverability and cold email outreach requirements and monthly budget
- Estimate your expected warmup email volume 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
Warmup Inbox serves the email domain warming and deliverability side of an outbound stack and Woodpecker the cold email outreach side. Warmup Inbox publishes an entry price of $19/mo, while Woodpecker uses usage-based 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 Warmup Inbox and Woodpecker for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Warmup Inbox and Woodpecker?
- Warmup Inbox is an email warmup tool focused on domain warming and deliverability, while Woodpecker is a cold email platform built for sending outreach campaigns. Warmup Inbox lists email warmup and cold email sequence among its features, while Woodpecker lists unlimited team members and unlimited email accounts.
- How much does Warmup Inbox cost?
- Warmup Inbox has four pricing tiers: Basic at $19/mo with 75 warmup messages per day, Pro at $59/mo with 250 messages per day, Max at $99/mo with 1,000 messages per day, and a custom agency and teams plan starting at 15 inboxes with a custom quote.
- How is Woodpecker priced compared to Warmup Inbox?
- Woodpecker uses usage-based, pay-as-you-go pricing rather than fixed tiers, so it cannot be directly compared to Warmup Inbox's list price. Warmup Inbox publishes an entry price of $19/mo, while Woodpecker requires reaching out for a quote based on usage.
- Can I use both Warmup Inbox and Woodpecker together?
- Yes, the two tools cover different parts of an outbound workflow, so many teams run one of each. Warmup Inbox handles sender reputation and inbox placement, while Woodpecker handles sending campaigns and generating replies, and Woodpecker also includes its own built-in email warmup.
- Which tool has more integrations, Warmup Inbox or Woodpecker?
- Woodpecker lists 9 integrations, including HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Google Sheets, Calendly, and Slack. Warmup Inbox lists 8 integrations, including Gmail and Workspace, Outlook and Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue, and any SMTP inbox.
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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