Growbots vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
Compare Growbots (cold email platform) and Warmforge (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Growbots is a cold email platform for outreach, prospecting, and campaign automation, while Warmforge is an email warmup tool focused on sender reputation and inbox placement. Growbots offers a free entry plan, Warmforge starts at $12/mo. Teams choose Growbots for outreach, Warmforge for deliverability, and many run both together.
Key takeaways
- Growbots lists a 180M+ prospect database and email verification on import as core features.
- Warmforge lists email warm up and monitoring and health checks, including a per-mailbox Heat Score.
- Growbots entry pricing is $0/mo (Freemium), while Warmforge entry pricing is $12/mo for one mailbox slot.
- Growbots pricing scales to $29/mo (Starter Outreach) and $39/mo (Pro Outreach), both with unlimited email accounts and sequences.
- Warmforge pricing scales to $39/mo (Placement Tests Pro Plan) and $169/mo (Placement Tests Growth Plan) with unlimited tests at the top tier.
Reviewed and updated September 2, 2026
Growbots vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
Growbots is a cold email platform; Warmforge 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
Growbots is a cold email platform for cold email outreach; Warmforge is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, Growbots lists explore database of 180m+ prospects and email verification on import, and Warmforge lists email warm up and monitoring & health checks.
Growbots offers a lower entry point at $0/mo compared to Warmforge at $12/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Growbots is the one built for it; for building sender reputation and improving inbox placement, that is Warmforge. Many teams run one of each.
Understanding the Core Difference
Growbots is Cold email software that finds prospects in a 180M+ contact database, warms up sending inboxes and automates outbound email campaigns. Also sells a Concierge service in which its own team runs the outbound process.
Warmforge is Email warm up tool from the Forge Ecosystem that warms mailboxes with AI-written emails and tracks a per-mailbox Heat Score. Adds DNS, MX and blacklist health checks, placement tests and automatic removal of warm-up mail that lands in spam.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Freemium
Email Warm Up (per slot)
Growbots Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Freemium | Free | Basic Filters; partial access to the 180M+ prospect database | 20 email accounts; 3 sequences; up to 20 per email daily |
| Starter Outreach | $29/mo | Credits (Per Propsect) From $0.13 | Unlimited email accounts; unlimited sequences; up to 100 per email daily |
| Pro Outreach | $39/mo | Credits (Per Propsect) From $0.13 | Unlimited email accounts; unlimited sequences; up to 500 per email daily |
Source: Growbots Pricing
Warmforge Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Warm Up (per slot) | $12/mo | 1 slot covers 1 mailbox; 1 free slot included | Automated AI email warm up; 1 free placement test per month |
| Placement Tests Pro Plan | $39/mo | 50 mailboxes per test | 100 tests per month |
| Placement Tests Growth Plan | $169/mo | 250 mailboxes per test | Unlimited tests |
Source: Warmforge Pricing
Pricing Analysis
Growbots is more affordable at the entry level ($0/mo vs $12/mo). For teams with tight budgets or those just getting started with cold email outreach and email domain warming and deliverability, this price difference matters.
Growbots includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- and 4 more listed below
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- and 2 more listed below
Growbots Key Features
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- Shared Inbox
- Out-Of-Office Rescheduling
- Warm Replies Detection
- Email Templates Generator
Warmforge Key Features
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
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 Growbots
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- Shared Inbox
- Out-Of-Office Rescheduling
- Warm Replies Detection
- Email Templates Generator
Listed only by Warmforge
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
Integration Ecosystem
Growbots Integrations
Growbots connects with: Salesforce, HubSpot, Zapier, Gmail, Outlook, SMTP, IMAP.
Warmforge Integrations
Warmforge connects with: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Shared Integrations
Both tools integrate with: Gmail, Outlook.
Integrations listed only by Growbots: Salesforce, HubSpot, Zapier, SMTP, IMAP.
Integrations listed only by Warmforge: Google Workspace, Microsoft 365, Salesforge (native), Mailforge (native).
Use Case Recommendations
Best Fit for Growbots
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (10 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Teams that want to start free and scale up as needs grow
Best Fit for Warmforge
- Budget-conscious teams looking for an affordable email warmup tool
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
- Agencies managing warmup across multiple client domains
Feature Comparison Summary
| Feature | Growbots | Warmforge |
|---|---|---|
| Starting Price | Free | $12/mo |
| Top Tier Price | $39/mo | $169/mo |
| Total Features Listed | 10 | 8 |
| Integrations | 7 | 6 |
| Founded | 2014 | 2024 |
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
Growbots serves the cold email outreach side of an outbound stack and Warmforge the email domain warming and deliverability side. Growbots offers a more accessible entry point, while Warmforge starts at $12/mo. 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 Growbots and Warmforge for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Growbots and Warmforge?
- Growbots is a cold email platform built for prospecting and outreach campaigns, using a 180M+ contact database. Warmforge is an email warmup tool focused on building sender reputation and inbox placement, using AI-written warmup emails and a per-mailbox Heat Score along with DNS, MX, and blacklist health checks.
- Which is cheaper, Growbots or Warmforge?
- Growbots has a lower entry point at $0/mo with its Freemium plan, compared to Warmforge's $12/mo entry plan for one mailbox slot. Growbots paid plans then run $29/mo and $39/mo, while Warmforge's higher tiers run $39/mo and $169/mo for expanded placement testing.
- Do Growbots and Warmforge integrate with the same tools?
- Both tools integrate with Gmail and Outlook. Beyond that, Growbots also connects with Salesforce, HubSpot, Zapier, SMTP, and IMAP, while Warmforge also connects with Google Workspace, Microsoft 365, Salesforge (native), and Mailforge (native).
- Can I use Growbots and Warmforge together?
- Yes, the article notes that many teams run one of each since they solve different problems. Growbots handles cold email outreach and campaign sending, while Warmforge handles the domain warming and deliverability side, so combining them covers both parts of the workflow.
- Which tool should I choose if inbox placement is my main concern?
- Warmforge is built specifically for building sender reputation and improving inbox placement, using warmup emails, a Heat Score per mailbox, and placement tests. Growbots, by contrast, is designed for sending campaigns and generating replies rather than deliverability monitoring.
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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