Boost Inbox vs Vocus.io: Email Warmup Tool vs Cold Email Platform Comparison
Compare Boost Inbox (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.
Boost Inbox is an email warmup tool that builds sender reputation and inbox placement, while Vocus.io is a cold email platform for sending outreach campaigns and follow-ups. Both start at $5/mo. Teams focused on deliverability should pick Boost Inbox; teams sending campaigns should pick Vocus.io. Many teams use both together.
Key takeaways
- Boost Inbox and Vocus.io both offer entry plans starting at $5/mo.
- Boost Inbox's top tier costs $19/mo for 8 mailboxes for warmup, while Vocus.io's top tier costs $80/mo with external SMTP support.
- Vocus.io offers 4 pricing tiers compared to Boost Inbox's 3 tiers.
- Both tools list Gmail as a shared integration, with Boost Inbox also connecting to GSuite, Outlook 365, Yahoo Mail, Amazon SES, and SMTP, and Vocus.io connecting to Google Workspace, Salesforce, Pipedrive, Zapier, and Webhooks.
- Boost Inbox lists 8 total features on its site compared to 10 listed by Vocus.io.
Reviewed and updated September 2, 2026
Boost Inbox vs Vocus.io: Email Warmup Tool vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh Boost Inbox, an email warmup tool for email domain warming and deliverability, against Vocus.io, a cold email platform for cold email outreach. 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
Boost Inbox is an email warmup tool for email domain warming and deliverability; Vocus.io is a cold email platform for cold email outreach. By each vendor's own wording, Boost Inbox lists email warmup and fully automated, and Vocus.io lists email tracking and templates & snippets.
Both start at the same price point ($5/mo), so the decision comes down to features and workflow fit.
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 Vocus.io. 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.
Vocus.io is Email outreach platform for Gmail and Google Workspace. Sends personalized mass campaigns with automated follow-ups, tracks opens and link clicks per recipient, shares templates across a team and logs activity to a CRM.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
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
Vocus.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | $5/mo | 5 Inboxes; 50 Snippets | 50 Followups |
| Starter | $10/mo | 5 Inboxes; 100 Snippets | 100 Followups |
| Professional | $20/mo | 10 Inboxes; 200 Snippets | 500 Followups |
| Growth | $80/mo | 800 snippets | external SMTP support |
Source: Vocus.io Pricing
Pricing Analysis
Both platforms start at the same $5/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.
Vocus.io offers 4 pricing tiers compared to Boost Inbox's 3, giving you more granularity as you scale.
Features Breakdown
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- and 2 more listed below
- Email tracking
- Templates & Snippets
- Send Later & Snooze
- Automated Followups
- Salesforce & CRM Integration
- Campaigns
- and 4 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
Vocus.io Key Features
- Email tracking
- Templates & Snippets
- Send Later & Snooze
- Automated Followups
- Salesforce & CRM Integration
- Campaigns
- Campaigns w/ Followups
- Campaigns w/ Attachments
- Branded URLs
- Teams
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 Vocus.io
- Email tracking
- Templates & Snippets
- Send Later & Snooze
- Automated Followups
- Salesforce & CRM Integration
- Campaigns
- Campaigns w/ Followups
- Campaigns w/ Attachments
- Branded URLs
- Teams
Integration Ecosystem
Boost Inbox Integrations
Boost Inbox connects with: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP.
Vocus.io Integrations
Vocus.io connects with: Gmail, Google Workspace, Salesforce, Pipedrive, Zapier, Webhooks.
Shared Integrations
Both tools integrate with: Gmail.
Integrations listed only by Boost Inbox: GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP.
Integrations listed only by Vocus.io: Google Workspace, Salesforce, Pipedrive, Zapier, Webhooks.
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 Vocus.io
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (10 capabilities listed)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Feature Comparison Summary
| Feature | Boost Inbox | Vocus.io |
|---|---|---|
| Starting Price | $5/mo | $5/mo |
| Top Tier Price | $19/mo | $80/mo |
| Total Features Listed | 8 | 10 |
| Integrations | 6 | 6 |
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 Vocus.io the cold email outreach side. Boost Inbox offers a more accessible entry point at $5/mo, while Vocus.io 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 Vocus.io for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Boost Inbox and Vocus.io?
- Boost Inbox is an email warmup tool focused on email domain warming and deliverability, sending realistic emails daily to build sender reputation. Vocus.io is a cold email platform built for sending personalized outreach campaigns with automated follow-ups, tracking, and CRM logging. They address different parts of the outbound workflow rather than competing directly.
- Which is cheaper, Boost Inbox or Vocus.io?
- Both tools start at the same price of $5/mo on their entry plans. The difference appears at higher tiers: Boost Inbox's top plan is $19/mo, while Vocus.io's top plan reaches $80/mo, so the better value depends on the features and scale you need.
- Do Boost Inbox and Vocus.io integrate with the same tools?
- They share Gmail as a common integration. Beyond that, Boost Inbox connects with GSuite, Outlook 365, Yahoo Mail, Amazon SES, and SMTP, while Vocus.io connects with Google Workspace, Salesforce, Pipedrive, Zapier, and Webhooks, so their integration ecosystems mostly diverge outside of Gmail.
- Can I use Boost Inbox and Vocus.io together?
- Yes, many teams run both tools since they cover different parts of the outbound workflow. Boost Inbox handles domain warming and deliverability, while Vocus.io handles sending and tracking cold email campaigns, making them complementary rather than competing products.
- Who is Vocus.io best suited for?
- Vocus.io is best suited for budget-conscious teams wanting an affordable cold email platform, teams needing a wide feature set with 10 capabilities listed, sales teams running high-volume outbound campaigns, and agencies managing multiple client outreach programs.
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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