Reply.io vs TrulyInbox: Cross-Category Comparison
Compare Reply.io (cold email platform) and TrulyInbox (email warmup tool) side by side. Understand how these tools fit different stages of your sales workflow.
Reply.io is a cold email platform for executing outbound campaigns, starting at $49/month with unlimited emails and access to 1 billion B2B contacts. TrulyInbox is an email warmup tool that prepares domains for better deliverability, starting free with 10 warmup emails daily. They serve different workflow stages—campaign execution versus deliverability preparation—and many sales teams use both tools together rather than choosing one over the other.
Key takeaways
- Reply.io starts at $49/month for unlimited email sending with 1,000 active contacts, while TrulyInbox offers a free plan with 10 warmup emails per day and paid plans from $29/month.
- Reply.io includes access to a database of 1 billion B2B contacts and AI SDR capabilities on its highest tier at $259/month.
- TrulyInbox supports unlimited inbox connections on all paid plans with customizable reply rates ranging from 10% to 65% depending on the plan tier.
- Reply.io integrates with major CRMs including HubSpot, Salesforce, and Pipedrive, while TrulyInbox connects with email providers like Gmail, Outlook, and Microsoft 365.
- These tools address different workflow stages with minimal feature overlap, making them complementary rather than competitive in most sales tech stacks.
Reviewed and updated February 6, 2026
Reply.io vs TrulyInbox: Cross-Category Comparison
Reply.io (cold email platform) and TrulyInbox (email warmup tool) address different challenges in the outbound sales process. Comparing them makes sense when you are deciding which part of your workflow to invest in next.
Why Compare These Two Tools?
Both tools address email outreach, but at different stages. Email sending platforms execute campaigns while warmup tools prepare domains for better deliverability. Teams often evaluate whether an all-in-one platform can handle both or if dedicated tools perform better.
Reply.io is a cold email platform focused on cold email outreach. AI-powered sales engagement platform with 1B+ B2B contacts, multichannel sequences, and AI SDR capabilities.
TrulyInbox is a email warmup tool focused on email domain warming and deliverability. 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.
Where Each Tool Fits in Your Workflow
| Aspect | Reply.io | TrulyInbox |
|---|---|---|
| Category | Cold Email Platform | Email Warmup Tool |
| Workflow Stage | Campaign execution | Deliverability preparation |
| Primary Focus | Cold email outreach | Email domain warming and deliverability |
| Starting Price | $49/mo | Free |
| Features Listed | 9 | 8 |
| Integrations | 9 | 7 |
Pricing Comparison
Reply.io Pricing (as of February 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Volume | $49/mo | 1,000 active contacts | Unlimited |
| Multichannel | $89/mo | Unlimited | Unlimited |
| Agency | $166/mo | Custom | Unlimited |
| AI SDR | $259/mo | Custom | Unlimited |
Source: Reply.io Pricing
TrulyInbox Pricing (as of February 2026)
| Plan | Price | Emails |
|---|---|---|
| Free | Free | 10 warmup emails/day |
| Starter | $29/mo | 100 warmup emails/day |
| Growth | $79/mo | 1,000 warmup emails/day |
| Scale | $189/mo | 3,000 warmup emails/day |
| Business | $289/mo | 6,000 warmup emails/day |
Source: TrulyInbox Pricing
Pricing Context
These tools serve different purposes, so a direct price comparison requires context. Reply.io starts at $49/mo for cold email outreach, while TrulyInbox starts at $0/mo for email domain warming and deliverability. Many teams end up paying for both since they address different workflow stages.
Feature Highlights
Reply.io Key Capabilities (Cold Email Platform)
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- AI SDR capabilities
- Multi-workspace for agencies
- 14-day free trial
TrulyInbox Key Capabilities (Email Warmup Tool)
- 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
Feature Overlap
These tools have minimal feature overlap, which makes sense given their different categories. They are more complementary than competitive.
Integration Ecosystem
Reply.io Integrations
Reply.io connects with: HubSpot, Salesforce, Pipedrive, Copper CRM, Zendesk Sell, Close, Zapier, Make, n8n.
TrulyInbox Integrations
TrulyInbox connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho Mail, SMTP, Yahoo Mail.
When to Choose Reply.io
- Your biggest gap is in campaign execution
- You already have a solid email warmup tool and need specialized cold email outreach capabilities
- You want an affordable entry point ($49/mo)
- Your team's primary bottleneck is cold email outreach
When to Choose TrulyInbox
- Your biggest gap is in deliverability preparation
- You already have a cold email platform and need better email domain warming and deliverability
- You want an affordable entry point ($0/mo)
- Your team's primary bottleneck is email domain warming and deliverability
Using Both Together
Many sales teams use both a cold email platform and a email warmup tool as part of their complete workflow. Reply.io handles campaign execution while TrulyInbox covers deliverability preparation.
Check each tool's integration documentation to see how they connect in your specific tech stack.
Decision Framework
- Map your workflow gaps. Which stage needs the most improvement: campaign execution or deliverability preparation?
- Check your existing stack. Do you already have a tool covering one of these categories?
- Consider your budget. Can you invest in both, or do you need to prioritize one?
- Trial both. Sign up for free trials to evaluate each tool in your actual workflow.
- Measure ROI separately. Track the impact of each tool on its specific workflow stage.
Related Reading
- Best Reply.io Alternatives in 2026
- Best TrulyInbox Alternatives in 2026
- Instantly vs Reply.io: Which Cold Email Platform Fits Your Outreach Strategy?
- Reply.io vs Smartlead: Which Cold Email Platform Fits Your Outreach Strategy?
- Mailreach vs TrulyInbox: Email Warmup Tool Comparison
Pricing and features verified as of February 2026. Visit Reply.io and TrulyInbox for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Reply.io and TrulyInbox?
- Reply.io is a cold email platform designed for executing outbound campaigns, while TrulyInbox is an email warmup tool that prepares your email domains for better deliverability. Reply.io handles the actual sending of cold emails to prospects, whereas TrulyInbox gradually builds your domain reputation before you start sending campaigns. They operate at different stages of the outbound sales workflow, which is why many teams use both tools together.
- Can I use Reply.io without an email warmup tool like TrulyInbox?
- Yes, Reply.io includes unlimited email warmup as part of its platform, so you can use it independently. However, many teams choose dedicated warmup tools like TrulyInbox for more specialized deliverability preparation, especially when managing multiple domains or requiring advanced warmup customization. The decision depends on whether Reply.io's built-in warmup features meet your deliverability needs or if you need the additional capabilities a dedicated tool provides.
- How much does it cost to use both Reply.io and TrulyInbox together?
- Using both tools together starts at $49/month total if you use Reply.io's Email Volume plan ($49/month) and TrulyInbox's free plan ($0/month). For more robust usage, combining Reply.io's Multichannel plan ($89/month) with TrulyInbox's Starter plan ($29/month) costs $118/month. The exact cost depends on your specific needs for campaign volume and warmup capacity across both platforms.
- Which tool should I choose if I'm just starting with cold email outreach?
- If your primary need is executing cold email campaigns, choose Reply.io, which starts at $49/month and includes campaign management, 1,000 active contacts, and built-in warmup. If your existing emails are landing in spam and you need to improve deliverability first, start with TrulyInbox's free plan to warm up your domain before launching campaigns. Most teams building a complete outbound system eventually need both: TrulyInbox for deliverability preparation and Reply.io for campaign execution.
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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