Reply.io vs Warmy: Cold Email Platform vs Email Warmup Tool Comparison
Compare Reply.io (cold email platform) and Warmy (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reply.io is a cold email platform built for sending outbound campaigns and managing a 1 billion contact B2B database, while Warmy is an email warmup tool focused on domain warming and deliverability. Reply.io starts at $59/mo with four pricing tiers; Warmy uses custom, contact-sales pricing across three tiers. Many teams run both together.
Key takeaways
- Reply.io's entry plan, Email Volume, costs $59/mo and includes 1,000 active contacts with unlimited emails.
- Reply.io offers four pricing tiers, including an AI SDR Starter plan at $800/mo, compared to Warmy's three tiers.
- Warmy prices all three of its plans, B2B sender, B2C sender, and Custom, through Contact Sales rather than published rates.
- Reply.io lists nine features on its own site, including unlimited email warmup, AI personalization, and a 14-day free trial.
- Warmy lists eight features, including Email Warm-Up, Email Seed List, Google Postmaster Integration, and a dedicated deliverability expert.
Reviewed and updated September 2, 2026
Reply.io vs Warmy: Cold Email Platform vs Email Warmup Tool Comparison
Sales teams building an outbound stack often weigh Reply.io, a cold email platform for cold email outreach, against Warmy, an email warmup tool for email domain warming and deliverability. 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
Reply.io is a cold email platform for cold email outreach; Warmy is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, Reply.io lists unlimited email warmup and 1 billion b2b contacts database, and Warmy lists email warm-up and email seed list.
Reply.io publishes an entry price of $59/mo; Warmy 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, Reply.io is the one built for it; for building sender reputation and improving inbox placement, that is Warmy. Many teams run one of each.
Understanding the Core Difference
Reply.io is AI-powered sales engagement platform with 1B+ B2B contacts, multichannel sequences, and AI SDR capabilities.
Warmy is Automated email deliverability tool that warms up domains and IPs with AI-driven automation and a network of business or consumer mailboxes. Adds Google Postmaster integration, seed lists, deliverability insights and email verification in the same platform.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Email Volume
B2B sender
Reply.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Volume | $59/mo | 1,000 active contacts | Unlimited |
| Multichannel | $99/mo | Unlimited active contacts | Unlimited emails; 10 mailboxes |
| Agency Core | $210/mo | Unlimited clients & users | Unlimited mailboxes |
| AI SDR Starter | $800/mo | 1,000 active contacts | Unlimited mailboxes & warm-ups |
Source: Reply.io Pricing
Warmy Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| B2B sender | Contact Sales | Reach Businesses | Volume-based pricing |
| B2C sender | Contact Sales | Reach Consumers | Volume-based pricing |
| Custom plan | Contact Sales | Custom Solution | Volume-based pricing |
Source: Warmy 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.
Reply.io offers 4 pricing tiers compared to Warmy's 3, giving you more granularity as you scale.
Features Breakdown
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- and 3 more listed below
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- and 2 more listed below
Reply.io Key Features
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- AI SDR capabilities
- Multi-workspace for agencies
- 14-day free trial
Warmy Key Features
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- Deliverability monitor
- Dedicated deliverability expert
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 Reply.io
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- AI SDR capabilities
- Multi-workspace for agencies
- 14-day free trial
Listed only by Warmy
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- Deliverability monitor
- Dedicated deliverability expert
Integration Ecosystem
Reply.io Integrations
Reply.io connects with: HubSpot, Salesforce, Pipedrive, Copper CRM, Zendesk Sell, Close, Zapier, Make, n8n.
Warmy Integrations
Warmy connects with: Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, Google Postmaster.
Integrations listed only by Reply.io: HubSpot, Salesforce, Pipedrive, Copper CRM, Zendesk Sell, Close, Zapier, Make, n8n.
Integrations listed only by Warmy: Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, Google Postmaster.
Use Case Recommendations
Best Fit for Reply.io
- Teams that need a wide feature set (9 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Best Fit for Warmy
- Enterprise buyers who prefer custom pricing and dedicated support
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
- Agencies managing warmup across multiple client domains
Feature Comparison Summary
| Feature | Reply.io | Warmy |
|---|---|---|
| Starting Price | $59/mo | Contact Sales |
| Top Tier Price | $800/mo | Contact Sales |
| Total Features Listed | 9 | 8 |
| Integrations | 9 | 6 |
Getting Started Checklist
- Define your cold email outreach and email domain warming and deliverability requirements and monthly budget
- Estimate your expected email sending volume and warmup email 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
Reply.io serves the cold email outreach side of an outbound stack and Warmy the email domain warming and deliverability side. Reply.io publishes an entry price of $59/mo, while Warmy 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 Reply.io and Warmy for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Reply.io and Warmy?
- Reply.io is a cold email platform for running outbound campaigns and managing contacts, while Warmy is an email warmup tool for building sender reputation and improving inbox placement. They address different parts of the outbound workflow, so many teams use both rather than choosing one over the other.
- How much does Reply.io cost compared to Warmy?
- Reply.io publishes an entry price of $59/mo for its Email Volume plan, with tiers going up to $800/mo for AI SDR Starter. Warmy does not publish list prices; all three of its plans, B2B sender, B2C sender, and Custom, require contacting sales for a quote.
- Can Reply.io and Warmy be used together?
- Yes, the article notes that many teams run one of each. Reply.io handles sending campaigns and generating replies, while Warmy handles warming up domains and IPs to improve deliverability, so they complement each other rather than compete directly.
- Which tool has more integrations, Reply.io or Warmy?
- Reply.io lists nine integrations, including HubSpot, Salesforce, Pipedrive, Zapier, and n8n. Warmy lists six integrations, including Google Workspace, Microsoft 365, Gmail, and Google Postmaster, focused on email infrastructure rather than sales tools.
- Who is Warmy best suited for?
- Warmy is best suited for enterprise buyers who prefer custom pricing and dedicated support, teams launching new email domains, organizations recovering from deliverability issues, and agencies managing warmup across multiple client domains, according to the article's use case recommendations.
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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