Inboxy vs Outplay: Email Warmup Tool vs Cold Email Platform Comparison
Compare Inboxy (email warmup tool) and Outplay (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Inboxy is an email warmup tool focused on domain warming and deliverability, priced at $47/mo with one plan. Outplay is a multi-channel cold email and sales engagement platform starting free, with paid tiers up to $139/mo. They solve different problems: Inboxy protects sender reputation, Outplay runs outreach campaigns, and many teams use both together.
Key takeaways
- Inboxy's only published plan, Inboxy Pro, costs $47/mo and covers Gmail and Office 365 inboxes with 120 daily emails per inbox.
- Outplay offers five pricing tiers: Free, Starter at $39/mo, Growth at $89/mo, Enterprise at $139/mo, and AI SDR at $99/mo.
- Outplay's Free plan supports 2,000 active prospects per month with unlimited emails, giving it a lower entry point than Inboxy.
- Inboxy lists features such as Primary Inbox Supercharger, Domain Score IQ Monitoring, and AI Generated Emails using GPT-3, while Outplay lists multi-channel outreach across email, phone, LinkedIn, SMS, and chat plus an AI sequence writer.
- Inboxy integrates with providers like Gmail, Google Workspace, Outlook, Mailgun, GoDaddy, Inboxroad, and Sendgrid, while Outplay integrates with CRMs like Salesforce, HubSpot, Pipedrive, and Microsoft Dynamics 365 plus Zapier, Slack, and Calendly.
Reviewed and updated September 2, 2026
Inboxy vs Outplay: Email Warmup Tool vs Cold Email Platform Comparison
Inboxy is an email warmup tool; Outplay is a cold email platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: email domain warming and deliverability on one side, cold email outreach on the other. This guide lays out what each vendor publishes.
The Quick Answer
Inboxy is an email warmup tool for email domain warming and deliverability; Outplay is a cold email platform for cold email outreach. By each vendor's own wording, Inboxy lists primary inbox supercharger and domain score iq monitoring, and Outplay lists multi-channel outreach (email, phone, linkedin, sms, chat) and ai sequence writer.
Outplay offers a lower entry point at $0/mo compared to Inboxy at $47/mo.
If your priority is building sender reputation and improving inbox placement, Inboxy is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Outplay. Many teams run one of each.
Understanding the Core Difference
Inboxy is Email warmup tool that improves deliverability by gradually increasing sending volume and boosting domain reputation. It runs warmup through a private network of headless browsers with AI-driven adjustments to sending metrics.
Outplay is Multi-channel sales engagement platform with email sequences, dialer, LinkedIn automation, conversation intelligence, and AI SDR capabilities.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Inboxy Pro
Free
Inboxy Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Inboxy Pro | $47/mo | Gmail and Office 365 Inboxes | 120 Daily Emails Per Inbox |
Source: Inboxy Pricing
Outplay Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 2000 Active Prospects per month | Unlimited |
| Starter | $39/mo | 5,000 active prospects/month | Unlimited |
| Growth | $89/mo | Unlimited | Unlimited |
| Enterprise | $139/mo | Unlimited | Unlimited |
| AI SDR | $99/mo | 1,000+ active prospects | Unlimited |
Source: Outplay Pricing
Pricing Analysis
Outplay offers the lower entry point ($0/mo vs $47/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Outplay offers 5 pricing tiers compared to Inboxy's 1, giving you more granularity as you scale.
Outplay includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Primary Inbox Supercharger
- Domain Score IQ Monitoring
- AI Powered Inbox Adjustments
- Dynamic Email Scheduling
- Live Inbox Engagement Feed
- AI Generated Emails (GPT-3)
- and 3 more listed below
- Multi-channel outreach (email, phone, LinkedIn, SMS, chat)
- AI sequence writer
- Conversation intelligence
- Power dialer with auto voicemail drop
- Website visitor tracking
- A/B testing
- and 4 more listed below
Inboxy Key Features
- Primary Inbox Supercharger
- Domain Score IQ Monitoring
- AI Powered Inbox Adjustments
- Dynamic Email Scheduling
- Live Inbox Engagement Feed
- AI Generated Emails (GPT-3)
- IP Warm Up Service
- SMTP Warm Up Service
- Inbox Placement Test
Outplay Key Features
- Multi-channel outreach (email, phone, LinkedIn, SMS, chat)
- AI sequence writer
- Conversation intelligence
- Power dialer with auto voicemail drop
- Website visitor tracking
- A/B testing
- Auto email rotation
- Spintax support
- AI objection handling
- Chrome extension
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 Inboxy
- Primary Inbox Supercharger
- Domain Score IQ Monitoring
- AI Powered Inbox Adjustments
- Dynamic Email Scheduling
- Live Inbox Engagement Feed
- AI Generated Emails (GPT-3)
- IP Warm Up Service
- SMTP Warm Up Service
- Inbox Placement Test
Listed only by Outplay
- Multi-channel outreach (email, phone, LinkedIn, SMS, chat)
- AI sequence writer
- Conversation intelligence
- Power dialer with auto voicemail drop
- Website visitor tracking
- A/B testing
- Auto email rotation
- Spintax support
- AI objection handling
- Chrome extension
Integration Ecosystem
Inboxy Integrations
Inboxy connects with: Personal Gmail, Google Workspace, Outlook/Office (SMTP), Outlook/Office (Oauth), Mailgun, GoDaddy, Inboxroad, Sendgrid, Custom SMTP.
Outplay Integrations
Outplay connects with: Salesforce, HubSpot, Pipedrive, Microsoft Dynamics 365, Gmail, Outlook, Zapier, Slack, Calendly.
Integrations listed only by Inboxy: Personal Gmail, Google Workspace, Outlook/Office (SMTP), Outlook/Office (Oauth), Mailgun, GoDaddy, Inboxroad, Sendgrid, Custom SMTP.
Integrations listed only by Outplay: Salesforce, HubSpot, Pipedrive, Microsoft Dynamics 365, Gmail, Outlook, Zapier, Slack, Calendly.
Use Case Recommendations
Best Fit for Inboxy
- 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 Outplay
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (10 capabilities listed)
- Teams that want to start free and scale up as needs grow
Feature Comparison Summary
| Feature | Inboxy | Outplay |
|---|---|---|
| Starting Price | $47/mo | Free |
| Top Tier Price | $47/mo | $99/mo |
| Total Features Listed | 9 | 10 |
| Integrations | 9 | 9 |
| Founded | N/A | 2019 |
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
Inboxy serves the email domain warming and deliverability side of an outbound stack and Outplay the cold email outreach side. Outplay offers a more accessible entry point, while Inboxy starts at $47/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 Inboxy and Outplay for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Inboxy and Outplay?
- Inboxy is an email warmup tool that gradually increases sending volume and boosts domain reputation to improve deliverability, using a private network of headless browsers with AI-driven adjustments. Outplay is a multi-channel sales engagement platform offering email sequences, a dialer, LinkedIn automation, conversation intelligence, and AI SDR capabilities. They address different parts of the outreach workflow.
- Which tool is cheaper, Inboxy or Outplay?
- Outplay has a lower entry point with a free plan supporting 2,000 active prospects per month and unlimited emails. Inboxy has one published plan, Inboxy Pro, at $47/mo, covering Gmail and Office 365 inboxes with 120 daily emails per inbox. Outplay also offers paid tiers ranging from $39/mo to $139/mo.
- Can I use Inboxy and Outplay together?
- Yes, the article notes that many teams run one of each because they solve different problems. Inboxy focuses on building sender reputation and improving inbox placement, while Outplay is built for sending campaigns that land in the inbox and generate replies, so combining them covers both deliverability and outreach.
- What integrations does Outplay support that Inboxy doesn't?
- Outplay integrates with Salesforce, HubSpot, Pipedrive, Microsoft Dynamics 365, Gmail, Outlook, Zapier, Slack, and Calendly. Inboxy's integrations focus on email infrastructure instead, including Personal Gmail, Google Workspace, Outlook SMTP and Oauth, Mailgun, GoDaddy, Inboxroad, Sendgrid, and Custom SMTP.
- Who should choose Inboxy over Outplay?
- Inboxy fits budget-conscious teams needing an affordable email warmup tool, teams launching new email domains for outreach, organizations recovering from deliverability issues, and agencies managing warmup across multiple client domains. It is built specifically for improving sender reputation rather than running outreach campaigns.
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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