ReachInbox vs Warmup Inbox: Cold Email Platform vs Email Warmup Tool Comparison
Compare ReachInbox (cold email platform) and Warmup Inbox (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 built for sending AI-personalized outreach campaigns, starting free with a paid tier at $39/mo. Warmup Inbox is a dedicated email warmup tool that builds sender reputation, starting at $19/mo. They serve different stages of outbound email, so many teams use ReachInbox for campaigns and Warmup Inbox for deliverability.
Key takeaways
- ReachInbox offers a Free Plan with 50 active leads and 250 emails per month, plus paid tiers at $39, $99, and $299 per month.
- Warmup Inbox starts at $19 per month for its Basic plan, which includes 75 warmup messages per day per inbox.
- Warmup Inbox exchanges email with a network of more than 30,000 real inboxes to build sender reputation automatically.
- ReachInbox lists 11 features including unlimited email accounts, unlimited AI warmup, and lead finder, while Warmup Inbox lists 9 features including email warmup, language warmup, and ESP warmup tool.
- ReachInbox integrates with GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, and Activepieces, while Warmup Inbox integrates with Gmail, Outlook, Zoho Mail, Amazon SES, Mailgun, SendGrid, and Brevo.
Reviewed and updated September 2, 2026
ReachInbox vs Warmup Inbox: Cold Email Platform vs Email Warmup Tool Comparison
Sales teams building an outbound stack often weigh ReachInbox, a cold email platform for cold email outreach, against Warmup Inbox, 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
ReachInbox is a cold email platform for cold email outreach; Warmup Inbox 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 Warmup Inbox lists email warmup and cold email sequence.
ReachInbox offers a lower entry point at $0/mo compared to Warmup Inbox at $19/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 Warmup Inbox. 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.
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.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Free Plan
Basic
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
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
Pricing Analysis
ReachInbox is more affordable at the entry level ($0/mo vs $19/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 Warmup Inbox's 4, 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 warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- and 3 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
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
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 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
Integration Ecosystem
ReachInbox Integrations
ReachInbox connects with: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Warmup Inbox Integrations
Warmup Inbox connects with: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Integrations listed only by ReachInbox: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Integrations listed only by Warmup Inbox: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
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)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Warmup Inbox
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | ReachInbox | Warmup Inbox |
|---|---|---|
| Starting Price | Free | $19/mo |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 11 | 9 |
| Integrations | 7 | 8 |
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 Warmup Inbox the email domain warming and deliverability side. ReachInbox offers a more accessible entry point, while Warmup Inbox starts at $19/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 Warmup Inbox for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between ReachInbox and Warmup Inbox?
- ReachInbox is a cold email platform for running cold email outreach campaigns, while Warmup Inbox is an email warmup tool focused on domain warming and deliverability. ReachInbox connects unlimited email accounts and runs AI-personalized campaigns, while Warmup Inbox builds sender reputation by exchanging email with a network of more than 30,000 real inboxes.
- Which tool is cheaper, ReachInbox or Warmup Inbox?
- ReachInbox has a lower entry price, starting free, compared to Warmup Inbox's Basic plan at $19 per month. ReachInbox also offers five pricing tiers versus Warmup Inbox's four, giving more granularity as usage scales.
- Can I use both ReachInbox and Warmup Inbox together?
- Yes, many teams run one of each since the tools cover different parts of the outbound workflow. ReachInbox handles campaign sending and personalization while Warmup Inbox focuses on building and maintaining sender reputation.
- Does ReachInbox include email warmup features?
- Yes, ReachInbox lists unlimited AI warmup as one of its own features alongside unlimited email accounts, hyper-personalization, and AI replies. However, Warmup Inbox is dedicated specifically to warmup, using a network of more than 30,000 real inboxes for that purpose.
- What integrations does Warmup Inbox support?
- Warmup Inbox connects with Gmail and Workspace, Outlook and Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), and any inbox using SMTP. This is different from ReachInbox's integration list, which includes GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, and Activepieces.
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.