Instantly vs Warmy: Cold Email Platform vs Email Warmup Tool Comparison
Compare Instantly (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.
Instantly is a cold email platform starting at $47/mo with unlimited email accounts and unlimited warmup, built for sending campaigns and generating replies. Warmy is an email warmup tool with custom pricing, focused on domain warming, deliverability insights, and sender reputation. Many teams use both together rather than choosing one.
Key takeaways
- Instantly's entry plan, Growth, costs $47/mo and includes 1000 uploaded contacts and 5000 emails monthly.
- Instantly offers 4 pricing tiers, Growth, Hypergrowth, Light Speed, and Enterprise, while Warmy offers 3 tiers, B2B sender, B2C sender, and Custom plan.
- Warmy uses custom, contact-sales pricing across all of its plans rather than published list prices.
- Instantly integrates with 9 tools including HubSpot, Salesforce, Pipedrive, Zapier, and Slack, while Warmy integrates with 6 tools including Google Workspace, Microsoft 365, and Gmail.
- Both platforms list email verification as a shared feature, and each vendor lists 8 total features on its own page.
Reviewed and updated September 2, 2026
Instantly vs Warmy: Cold Email Platform vs Email Warmup Tool Comparison
Instantly is a cold email platform; Warmy is an email warmup tool. Whether you need one, the other, or both depends on which part of the workflow you are buying for: cold email outreach on one side, email domain warming and deliverability on the other. This guide lays out what each vendor publishes.
The Quick Answer
Instantly 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, Instantly lists unlimited email accounts and unlimited email warmup, and Warmy lists email warm-up and email seed list.
Instantly publishes an entry price of $47/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, Instantly 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
Instantly is Cold email platform with unlimited email accounts, unlimited warmup, and a 450M+ B2B lead database.
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.
Both platforms offer email verification. Where they diverge is in their approach to pricing tiers and advanced capabilities.
Pricing Comparison
Growth
B2B sender
Instantly Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Growth | $47/mo | 1000 Uploaded Contacts | 5000 Emails Monthly |
| Hypergrowth | $97/mo | 25 000 Uploaded Contacts | 125,000 emails/month |
| Light Speed | $358/mo | 100 000 Uploaded Contacts | 500 000 Emails Monthly |
| Enterprise | Contact Sales | 100 000+ Uploaded Contacts | 500 000+ Emails Monthly |
Source: Instantly 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.
Instantly offers 4 pricing tiers compared to Warmy's 3, giving you more granularity as you scale.
Features Breakdown
- Unlimited email accounts
- Unlimited email warmup
- Master inbox
- Campaign analytics
- A/B testing
- AI-powered features
- and 1 more listed below
- Email verification
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Warmy API
- Deliverability monitor
- and 1 more listed below
Instantly Key Features
- Unlimited email accounts
- Unlimited email warmup
- Email verification
- Master inbox
- Campaign analytics
- A/B testing
- AI-powered features
- Dedicated IP rotation (Light Speed+)
Warmy Key Features
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- Deliverability monitor
- Dedicated deliverability expert
Shared Capabilities
Both Instantly and Warmy include:
- Email verification
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 Instantly
- Unlimited email accounts
- Unlimited email warmup
- Master inbox
- Campaign analytics
- A/B testing
- AI-powered features
- Dedicated IP rotation (Light Speed+)
Listed only by Warmy
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Warmy API
- Deliverability monitor
- Dedicated deliverability expert
Integration Ecosystem
Instantly Integrations
Instantly connects with: HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Clay, Slack, Google Calendar.
Warmy Integrations
Warmy connects with: Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, Google Postmaster.
Integrations listed only by Instantly: HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Clay, Slack, Google Calendar.
Integrations listed only by Warmy: Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, Google Postmaster.
Use Case Recommendations
Best Fit for Instantly
- Budget-conscious teams looking for an affordable cold email platform
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
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 | Instantly | Warmy |
|---|---|---|
| Starting Price | $47/mo | Contact Sales |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 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
Instantly serves the cold email outreach side of an outbound stack and Warmy the email domain warming and deliverability side. Instantly publishes an entry price of $47/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 Instantly and Warmy for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Instantly and Warmy?
- Instantly is a cold email platform built for outreach campaigns, while Warmy is an email warmup tool focused on domain warming and deliverability. Instantly lists unlimited email accounts and unlimited warmup as core features, while Warmy lists email warm-up and email seed list as its core features.
- How much does Instantly cost compared to Warmy?
- Instantly publishes an entry price of $47/mo for its Growth plan, while Warmy uses custom, contact-sales pricing across all three of its plans, B2B sender, B2C sender, and Custom plan. Because Warmy has no published list price, the two cannot be directly compared on price.
- Do I need both Instantly and Warmy?
- Many teams run both, since Instantly handles cold email outreach and Warmy handles sender reputation and deliverability. If the priority is sending campaigns that land in the inbox and generate replies, Instantly is built for that job, while Warmy is built for building sender reputation and improving inbox placement.
- What integrations does each platform support?
- Instantly connects with HubSpot, Salesforce, Pipedrive, Zapier, Make, n8n, Clay, Slack, and Google Calendar. Warmy connects with Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, and Google Postmaster, giving Instantly a broader integration list of 9 tools versus Warmy's 6.
- Which tool is better for agencies managing multiple client domains?
- Warmy is recommended for agencies managing warmup across multiple client domains, according to its listed use case recommendations. It is also suited for teams launching new email domains for outreach and organizations recovering from existing deliverability issues.
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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