TrulyInbox vs Warmup Inbox: Email Warmup Tool Comparison
Compare TrulyInbox and Warmup Inbox side by side. See pricing, features, and integrations to choose the right email warmup tool for your needs.
Compare TrulyInbox and Warmup Inbox side by side. See pricing, features, and integrations to choose the right email warmup tool for your needs.
Reviewed and updated September 2, 2026
TrulyInbox vs Warmup Inbox: Email Warmup Tool Comparison
If you are comparing email domain warming and deliverability tools, TrulyInbox and Warmup Inbox will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.
The Quick Answer
By each vendor's own wording, TrulyInbox lists unlimited email account connections on all paid plans and customizable reply rate per plan (10% to 65%), while Warmup Inbox lists email warmup and cold email sequence. 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 Warmup Inbox at $19/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
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.
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
Basic
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
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
TrulyInbox is more affordable at the entry level ($0/mo vs $19/mo). For teams with tight budgets or those just getting started with email domain warming and deliverability, this price difference matters.
TrulyInbox offers 5 pricing tiers compared to Warmup Inbox's 4, giving you more granularity as you scale.
TrulyInbox includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- 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
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- and 3 more listed below
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
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 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
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
TrulyInbox Integrations
TrulyInbox connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho Mail, SMTP, Yahoo Mail.
Warmup Inbox Integrations
Warmup Inbox connects with: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Shared Integrations
Both tools integrate with: Zoho Mail.
Integrations listed only by TrulyInbox: Gmail, Google Workspace, Outlook, Microsoft 365, SMTP, Yahoo Mail.
Integrations listed only by Warmup Inbox: Gmail & Workspace, Outlook & Microsoft 365, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Use Case Recommendations
Best Fit for TrulyInbox
- Budget-conscious teams looking for an affordable email warmup tool
- Teams that want to start free and scale up as needs grow
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Best Fit for Warmup Inbox
- Budget-conscious teams looking for an affordable email warmup tool
- Teams that need a wide feature set (9 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | TrulyInbox | Warmup Inbox |
|---|---|---|
| Starting Price | Free | $19/mo |
| Top Tier Price | $479/mo | Contact Sales |
| Total Features Listed | 8 | 9 |
| Integrations | 7 | 8 |
| Founded | 2023 | N/A |
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
TrulyInbox and Warmup Inbox both serve the email domain warming and deliverability market. TrulyInbox 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 TrulyInbox and Warmup Inbox for current information.
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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