Boost Inbox vs TrulyInbox: Email Warmup Tool Comparison

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

$5/moBoost Inbox entry plan

Starter

FreeTrulyInbox entry plan

Free

Boost Inbox Pricing (as of September 2026)

Source: Boost Inbox Pricing

TrulyInbox Pricing (as of September 2026)

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

Boost Inbox lists

• Email Warmup
• Fully Automated
• Status Reports
• Human Review
• Premium Support
• Realistic emails sent from your inbox daily
• and 2 more listed below

TrulyInbox lists

• 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

Getting Started Checklist

1. Define your email domain warming and deliverability requirements and monthly budget
2. Estimate your expected warmup email volume to find the right tier
3. List the integrations your team currently relies on
4. Sign up for free trials or demos of both platforms
5. Run a small test with each tool before making a commitment
6. 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.