Boost Inbox vs TrulyInbox: Email Warmup Tool Comparison
Compare Boost Inbox and TrulyInbox side by side. See pricing, features, and integrations to choose the right email warmup tool for your needs.
Boost Inbox and TrulyInbox are both email warmup tools that build sender reputation, but they differ in pricing and features. Boost Inbox starts at $5/mo with 1 mailbox, while TrulyInbox offers a free plan and reaches $479/mo for unlimited inboxes. Choice depends on budget, team size, and needed features like reply rate customization or automation.
Key takeaways
- Boost Inbox's Starter plan costs $5/mo and includes 1 mailbox for warmup with 50 daily positive engagement.
- TrulyInbox offers a free plan with 1 email account and 10 warmup emails per day.
- TrulyInbox's Scale Plus plan costs $479/mo and provides unlimited email account connections with 5,000 warmup emails per day.
- TrulyInbox allows customizable reply rates ranging from 10% to 65% per plan.
- Boost Inbox integrates with Amazon SES and GSuite, integrations not listed by TrulyInbox.
Reviewed and updated September 2, 2026
Boost Inbox vs TrulyInbox: Email Warmup Tool Comparison
Boost Inbox and TrulyInbox compete head-to-head in the email domain warming and deliverability space. This guide compares their pricing tiers, feature sets, and integration ecosystems to help you make a confident decision.
The Quick Answer
By each vendor's own wording, Boost Inbox lists email warmup and fully automated, while TrulyInbox lists unlimited email account connections on all paid plans and customizable reply rate per plan (10% to 65%). A capability both offer can appear under different names, so read both feature lists below.
TrulyInbox 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, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
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.
TrulyInbox is Cost-effective email warmup platform that supports unlimited inbox connections on paid plans, with customizable reply rates, ramp-up schedules, and real-time deliverability scoring.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Free
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
TrulyInbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 1 email account | 10 warmup emails/day |
| Starter | $29/mo | 3 email inboxes | 200 warmup emails/day |
| Growth | $99/mo | 15 email inboxes | 1,000 warmup emails/day |
| Scale | $199/mo | unlimited accounts connectable | 3,000 warmup emails/day |
| Scale Plus / Custom Plan | $479/mo | unlimited accounts connectable | 5,000 warmup emails/day |
Source: TrulyInbox Pricing
Pricing Analysis
TrulyInbox offers the lower entry point ($0/mo vs $5/mo). Teams watching their budget will appreciate the savings, especially when starting out.
TrulyInbox offers 5 pricing tiers compared to Boost Inbox's 3, giving you more granularity as you scale.
TrulyInbox 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 email account connections on all paid plans
- Customizable reply rate per plan (10% to 65%)
- Customizable email ramp-up schedules
- Human-like email interaction simulation
- Real-time deliverability score tracking
- Multiple email open simulation for natural engagement
- and 2 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
TrulyInbox Key Features
- Unlimited email account connections on all paid plans
- Customizable reply rate per plan (10% to 65%)
- Customizable email ramp-up schedules
- Human-like email interaction simulation
- Real-time deliverability score tracking
- Multiple email open simulation for natural engagement
- Advanced warmup settings on higher plans
- Free forever plan with 1 inbox
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 TrulyInbox
- Unlimited email account connections on all paid plans
- Customizable reply rate per plan (10% to 65%)
- Customizable email ramp-up schedules
- Human-like email interaction simulation
- Real-time deliverability score tracking
- Multiple email open simulation for natural engagement
- Advanced warmup settings on higher plans
- Free forever plan with 1 inbox
Integration Ecosystem
Boost Inbox Integrations
Boost Inbox connects with: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP.
TrulyInbox Integrations
TrulyInbox connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho Mail, SMTP, Yahoo Mail.
Shared Integrations
Both tools integrate with: Gmail, Yahoo Mail, SMTP.
Integrations listed only by Boost Inbox: GSuite, Outlook 365, Amazon SES.
Integrations listed only by TrulyInbox: Google Workspace, Outlook, Microsoft 365, Zoho Mail.
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 TrulyInbox
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Teams that want to start free and scale up as needs grow
Feature Comparison Summary
| Feature | Boost Inbox | TrulyInbox |
|---|---|---|
| Starting Price | $5/mo | Free |
| Top Tier Price | $19/mo | $479/mo |
| Total Features Listed | 8 | 8 |
| Integrations | 6 | 7 |
| Founded | N/A | 2023 |
Getting Started Checklist
- Define your email domain warming and deliverability requirements and monthly budget
- Estimate your expected 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
Boost Inbox and TrulyInbox both serve the email domain warming and deliverability market. TrulyInbox 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 TrulyInbox for current information.
Frequently asked questions.
Frequently asked questions- How much does Boost Inbox cost?
- Boost Inbox pricing starts at $5/mo for the Starter plan with 1 mailbox for warmup, $9/mo for the Team plan with 3 mailboxes, and $19/mo for the Premium plan with 8 mailboxes, each including 50 daily positive engagement per mailbox.
- How much does TrulyInbox cost?
- TrulyInbox has a free plan with 1 email account and 10 warmup emails per day, then paid plans starting at $29/mo for Starter with 3 inboxes up to $479/mo for Scale Plus with unlimited accounts and 5,000 warmup emails per day.
- Which tool is cheaper to start with?
- TrulyInbox is cheaper to start with because it offers a free forever plan with 1 inbox, while Boost Inbox's lowest paid tier costs $5/mo for 1 mailbox.
- Do Boost Inbox and TrulyInbox integrate with the same email providers?
- Both tools integrate with Gmail, Yahoo Mail, and SMTP. Boost Inbox additionally supports GSuite, Outlook 365, and Amazon SES, while TrulyInbox additionally supports Google Workspace, Outlook, Microsoft 365, and Zoho Mail.
- Does TrulyInbox let you customize reply rates?
- Yes, TrulyInbox offers a customizable reply rate per plan ranging from 10% to 65%, a feature that appears on TrulyInbox's list but not on Boost Inbox'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
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