ReachInbox vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
Compare ReachInbox (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.
ReachInbox is a cold email platform for outreach campaigns and unified inbox management, while Warmforge is an email warmup tool for sender reputation and deliverability. ReachInbox starts free at $0/mo with 5 pricing tiers; Warmforge starts at $12/mo with 3 tiers. Many teams run both tools together in the same stack.
Key takeaways
- ReachInbox offers a free plan at $0/mo, while Warmforge's entry plan costs $12/mo per mailbox slot.
- ReachInbox provides 5 pricing tiers, compared to Warmforge's 3 pricing tiers.
- ReachInbox lists 11 features including unlimited email accounts and unlimited AI warmup, while Warmforge lists 8 features including a Heat Score per mailbox.
- ReachInbox integrates with 7 tools including GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, and Activepieces.
- Warmforge integrates with 6 tools including Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge, and Mailforge, and is part of the Forge Ecosystem.
Reviewed and updated September 2, 2026
ReachInbox vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
ReachInbox (cold email platform) and Warmforge (email warmup tool) 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
ReachInbox 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, ReachInbox lists unlimited e-mail accounts and unlimited ai warmup, and Warmforge lists email warm up and monitoring & health checks.
ReachInbox 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, ReachInbox 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
ReachInbox is Cold outreach platform that connects unlimited email accounts, warms them up, and runs AI-personalized campaigns from a unified inbox. Adds a lead finder, website visitor identification and inbox placement tests as separate product tabs.
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
Free Plan
Email Warm Up (per slot)
ReachInbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free Plan | Free | 50 Active Leads/mo | 250 Emails/mo |
| Starter Plan | $39/mo | 2,000 Active Leads/mo | 10,000 E-mails/mo |
| Growth Plan | $99/mo | 50,000 Active Leads/mo | 250,000 Emails/mo |
| Pro Plan | $299/mo | 200,000 Active Leads/mo | 1 Million Emails/mo |
| Enterprise Plan | Contact Sales | 500,000 Active Leads | 1 M Emails Monthly |
Source: ReachInbox 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
ReachInbox 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.
ReachInbox offers 5 pricing tiers compared to Warmforge's 3, giving you more granularity as you scale.
ReachInbox includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- and 5 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
ReachInbox Key Features
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- API Access and Integrations
- White Labeling
- Lead Finder
- Website Visitor Identification
- Inbox Placement Tests
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 ReachInbox
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- API Access and Integrations
- White Labeling
- Lead Finder
- Website Visitor Identification
- Inbox Placement Tests
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
ReachInbox Integrations
ReachInbox connects with: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Warmforge Integrations
Warmforge connects with: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Integrations listed only by ReachInbox: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Integrations listed only by Warmforge: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Use Case Recommendations
Best Fit for ReachInbox
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (11 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
- Enterprise buyers who prefer custom pricing and dedicated support
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 | ReachInbox | Warmforge |
|---|---|---|
| Starting Price | Free | $12/mo |
| Top Tier Price | Contact Sales | $169/mo |
| Total Features Listed | 11 | 8 |
| Integrations | 7 | 6 |
| Founded | N/A | 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
ReachInbox serves the cold email outreach side of an outbound stack and Warmforge the email domain warming and deliverability side. ReachInbox 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 ReachInbox and Warmforge for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between ReachInbox and Warmforge?
- ReachInbox is a cold email platform built for running AI-personalized outreach campaigns from a unified inbox, while Warmforge is an email warmup tool focused on warming mailboxes and tracking a per-mailbox Heat Score. ReachInbox also adds a lead finder and website visitor identification, while Warmforge adds DNS, MX, and blacklist health checks.
- Which is cheaper, ReachInbox or Warmforge?
- ReachInbox has a lower entry point at $0/mo through its Free Plan, compared to Warmforge's entry plan at $12/mo per mailbox slot. ReachInbox also offers 5 pricing tiers total, giving more granularity as teams scale, versus Warmforge's 3 tiers.
- Can I use ReachInbox and Warmforge together?
- Yes, the article notes that many teams run one of each tool since they serve different jobs in the outbound stack. ReachInbox handles sending campaigns and generating replies, while Warmforge focuses on building sender reputation and improving inbox placement.
- What integrations does each platform support?
- ReachInbox connects with GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, and Activepieces. Warmforge connects with Google Workspace, Microsoft 365, Gmail, Outlook, and its native tools Salesforge and Mailforge. The two platforms do not share any listed integrations.
- What features does Warmforge offer that ReachInbox doesn't list?
- Warmforge lists Email Warm Up, Monitoring and Health Checks, Placement Tests, Deliverability Boost, Always-On Warm Up, Heat Score per mailbox, health checks on DNS, MX records and blacklist status, and unique emails written by AI. These 8 items are listed only on Warmforge's own feature list, not ReachInbox's.
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
Connect on LinkedIn →Explore more.
Ready to scale your outreach?
We build GTM engines that book real meetings. See the receipts.
Related articles.
Mailwarm vs ReachInbox: Email Warmup Tool vs Cold Email Platform Comparison
Compare Mailwarm (email warmup tool) and ReachInbox (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Mailwarm vs Vocus.io: Email Warmup Tool vs Cold Email Platform Comparison
Compare Mailwarm (email warmup tool) and Vocus.io (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Lemlist vs ReachInbox: Cold Email Platform Comparison
Compare Lemlist and ReachInbox side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
Mixmax vs ReachInbox: Cold Email Platform Comparison
Compare Mixmax and ReachInbox side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
Outplay vs ReachInbox: Cold Email Platform Comparison
Compare Outplay and ReachInbox side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
MailRush.io vs ReachInbox: Cold Email Platform Comparison
Compare MailRush.io and ReachInbox side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.