Boost Inbox vs ReachInbox: Email Warmup Tool vs Cold Email Platform Comparison
Compare Boost Inbox (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.
Boost Inbox is an email warmup tool starting at $5/mo that builds sender reputation and inbox placement across 3 pricing tiers. ReachInbox is a cold email platform starting free ($0/mo) with 5 pricing tiers, unlimited AI warmup, and outreach features like lead finding and personalization. Many teams use both together rather than choosing one.
Key takeaways
- Boost Inbox's entry plan is $5/mo for 1 mailbox with 50 daily positive engagements, while its Premium plan is $19/mo for 8 mailboxes.
- ReachInbox offers a free plan with 50 active leads and 250 emails per month, plus paid tiers up to $299/mo for 200,000 active leads and 1 million emails per month.
- ReachInbox lists 11 features on its own page, including unlimited AI warmup, hyper-personalization, AI enrichment, AI replies, webhooks, and white labeling, compared to 8 listed by Boost Inbox.
- Boost Inbox integrates with Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, and SMTP, while ReachInbox integrates with GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, and Activepieces.
- ReachInbox offers 5 pricing tiers compared to Boost Inbox's 3, giving buyers more granularity as they scale.
Reviewed and updated September 2, 2026
Boost Inbox vs ReachInbox: Email Warmup Tool vs Cold Email Platform Comparison
Boost Inbox is an email warmup tool; ReachInbox is a cold email platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: email domain warming and deliverability on one side, cold email outreach on the other. This guide lays out what each vendor publishes.
The Quick Answer
Boost Inbox is an email warmup tool for email domain warming and deliverability; ReachInbox is a cold email platform for cold email outreach. By each vendor's own wording, Boost Inbox lists email warmup and fully automated, and ReachInbox lists unlimited e-mail accounts and unlimited ai warmup.
ReachInbox offers a lower entry point at $0/mo compared to Boost Inbox at $5/mo.
If your priority is building sender reputation and improving inbox placement, Boost Inbox is the one built for it; for sending campaigns that land in the inbox and generate replies, that is ReachInbox. Many teams run one of each.
Understanding the Core Difference
Boost Inbox is Email warmup service that gradually increases sending activity to build trust with email providers. It sends realistic emails from your inbox on a daily basis, keeps them out of spam, opens and bookmarks them, and replies to a portion of them to generate positive interactions.
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.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Free Plan
Boost Inbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $5/mo | 1 Mailbox For Warmup | 50 Daily Positive Engagement |
| Team | $9/mo | 3 Mailboxes For Warmup | 50 Daily Positive Engagement per mailbox |
| Premium | $19/mo | 8 Mailboxes For Warmup | 50 Daily Positive Engagement per mailbox |
Source: Boost Inbox Pricing
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
Pricing Analysis
ReachInbox offers the lower entry point ($0/mo vs $5/mo). Teams watching their budget will appreciate the savings, especially when starting out.
ReachInbox offers 5 pricing tiers compared to Boost Inbox's 3, giving you more granularity as you scale.
ReachInbox includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- and 2 more listed below
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- and 5 more listed below
Boost Inbox Key Features
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- Email health checker tool
- Inbox reputation analytics
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
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 Boost Inbox
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- Email health checker tool
- Inbox reputation analytics
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
Integration Ecosystem
Boost Inbox Integrations
Boost Inbox connects with: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP.
ReachInbox Integrations
ReachInbox connects with: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Integrations listed only by Boost Inbox: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP.
Integrations listed only by ReachInbox: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Use Case Recommendations
Best Fit for Boost Inbox
- 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
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
Feature Comparison Summary
| Feature | Boost Inbox | ReachInbox |
|---|---|---|
| Starting Price | $5/mo | Free |
| Top Tier Price | $19/mo | Contact Sales |
| Total Features Listed | 8 | 11 |
| Integrations | 6 | 7 |
Getting Started Checklist
- Define your email domain warming and deliverability and cold email outreach requirements and monthly budget
- Estimate your expected warmup email volume and email sending 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
Boost Inbox serves the email domain warming and deliverability side of an outbound stack and ReachInbox the cold email outreach side. ReachInbox offers a more accessible entry point, while Boost Inbox starts at $5/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 Boost Inbox and ReachInbox for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Boost Inbox and ReachInbox?
- Boost Inbox is an email warmup tool focused on building sender reputation and deliverability, while ReachInbox is a cold email platform built for running outreach campaigns. Boost Inbox sends realistic emails from your inbox daily to build trust with providers, while ReachInbox connects unlimited email accounts, warms them up, and runs AI-personalized campaigns from a unified inbox.
- Which one is cheaper, Boost Inbox or ReachInbox?
- ReachInbox has the lower entry point at $0/mo with its free plan, compared to Boost Inbox's Starter plan at $5/mo. ReachInbox also offers 5 pricing tiers versus Boost Inbox's 3, giving more granularity as usage scales, though ReachInbox's paid tiers reach as high as $299/mo for its Pro plan.
- Can I use both Boost Inbox and ReachInbox together?
- Yes, the article notes that many teams run one of each. Boost Inbox handles email domain warming and deliverability, while ReachInbox handles cold email outreach, so they cover different parts of the same workflow rather than competing directly for the same job.
- What integrations does ReachInbox support that Boost Inbox does not?
- ReachInbox integrates with GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, and Activepieces, none of which appear on Boost Inbox's integration list. Boost Inbox instead connects with Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, and SMTP.
- Who should choose Boost Inbox over ReachInbox?
- Boost Inbox best fits budget-conscious teams needing an affordable email warmup tool, teams launching new email domains, organizations recovering from deliverability issues, and agencies managing warmup across multiple client domains. It is built specifically for building sender reputation rather than running full outreach campaigns.
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.