Growbots vs Inboxy: Cold Email Platform vs Email Warmup Tool Comparison
Compare Growbots (cold email platform) and Inboxy (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Growbots is a cold email platform built for outreach, prospecting, and campaign automation, while Inboxy is an email warmup tool built for deliverability and sender reputation. Growbots starts free with a 180M+ contact database, and Inboxy starts at $47/mo with domain score monitoring and AI-driven inbox adjustments. Many teams use both together.
Key takeaways
- Growbots offers a free Freemium plan, while Inboxy's entry plan, Inboxy Pro, costs $47/mo.
- Growbots gives partial access to a database of 180M+ prospects even on its free plan.
- Growbots has 3 pricing tiers (Freemium, Starter Outreach at $29/mo, Pro Outreach at $39/mo), compared to Inboxy's single Inboxy Pro plan.
- Inboxy Pro allows 120 daily emails per inbox across Gmail and Office 365 accounts.
- Growbots integrates with Salesforce, HubSpot, and Zapier, while Inboxy integrates with tools like Mailgun, GoDaddy, Inboxroad, and Sendgrid.
Reviewed and updated September 2, 2026
Growbots vs Inboxy: Cold Email Platform vs Email Warmup Tool Comparison
Growbots is a cold email platform; Inboxy is an email warmup tool. Whether you need one, the other, or both depends on which part of the workflow you are buying for: cold email outreach on one side, email domain warming and deliverability on the other. This guide lays out what each vendor publishes.
The Quick Answer
Growbots is a cold email platform for cold email outreach; Inboxy is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, Growbots lists explore database of 180m+ prospects and email verification on import, and Inboxy lists primary inbox supercharger and domain score iq monitoring.
Growbots offers a lower entry point at $0/mo compared to Inboxy at $47/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Growbots is the one built for it; for building sender reputation and improving inbox placement, that is Inboxy. Many teams run one of each.
Understanding the Core Difference
Growbots is Cold email software that finds prospects in a 180M+ contact database, warms up sending inboxes and automates outbound email campaigns. Also sells a Concierge service in which its own team runs the outbound process.
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.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Freemium
Inboxy Pro
Growbots Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Freemium | Free | Basic Filters; partial access to the 180M+ prospect database | 20 email accounts; 3 sequences; up to 20 per email daily |
| Starter Outreach | $29/mo | Credits (Per Propsect) From $0.13 | Unlimited email accounts; unlimited sequences; up to 100 per email daily |
| Pro Outreach | $39/mo | Credits (Per Propsect) From $0.13 | Unlimited email accounts; unlimited sequences; up to 500 per email daily |
Source: Growbots Pricing
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
Pricing Analysis
Growbots is more affordable at the entry level ($0/mo vs $47/mo). For teams with tight budgets or those just getting started with cold email outreach and email domain warming and deliverability, this price difference matters.
Growbots offers 3 pricing tiers compared to Inboxy's 1, giving you more granularity as you scale.
Growbots includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- and 4 more listed below
- 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
Growbots Key Features
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- Shared Inbox
- Out-Of-Office Rescheduling
- Warm Replies Detection
- Email Templates Generator
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
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 Growbots
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- Shared Inbox
- Out-Of-Office Rescheduling
- Warm Replies Detection
- Email Templates Generator
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
Integration Ecosystem
Growbots Integrations
Growbots connects with: Salesforce, HubSpot, Zapier, Gmail, Outlook, SMTP, IMAP.
Inboxy Integrations
Inboxy connects with: Personal Gmail, Google Workspace, Outlook/Office (SMTP), Outlook/Office (Oauth), Mailgun, GoDaddy, Inboxroad, Sendgrid, Custom SMTP.
Integrations listed only by Growbots: Salesforce, HubSpot, Zapier, Gmail, Outlook, SMTP, IMAP.
Integrations listed only by Inboxy: Personal Gmail, Google Workspace, Outlook/Office (SMTP), Outlook/Office (Oauth), Mailgun, GoDaddy, Inboxroad, Sendgrid, Custom SMTP.
Use Case Recommendations
Best Fit for Growbots
- 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
Best Fit for Inboxy
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Feature Comparison Summary
| Feature | Growbots | Inboxy |
|---|---|---|
| Starting Price | Free | $47/mo |
| Top Tier Price | $39/mo | $47/mo |
| Total Features Listed | 10 | 9 |
| Integrations | 7 | 9 |
| Founded | 2014 | N/A |
Getting Started Checklist
- Define your cold email outreach and email domain warming and deliverability requirements and monthly budget
- Estimate your expected email sending volume and 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
Growbots serves the cold email outreach side of an outbound stack and Inboxy the email domain warming and deliverability side. Growbots 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 Growbots and Inboxy for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Growbots and Inboxy?
- Growbots is a cold email platform focused on finding prospects and running outbound campaigns, while Inboxy is an email warmup tool focused on deliverability and sender reputation. Growbots lists features like a 180M+ prospect database and email verification on import, while Inboxy lists domain score IQ monitoring and AI powered inbox adjustments.
- Which is cheaper, Growbots or Inboxy?
- Growbots is cheaper at the entry level, offering a free Freemium plan, while Inboxy's only listed plan, Inboxy Pro, costs $47/mo. Growbots also offers paid tiers at $29/mo and $39/mo for teams that need more sending volume or unlimited email accounts.
- Can I use Growbots and Inboxy together?
- Yes, the article notes that many teams run one of each since they solve different parts of the workflow. Growbots handles cold email outreach and campaign sending, while Inboxy handles domain warming and inbox deliverability, so they are often used side by side rather than as substitutes.
- How many daily emails does Inboxy allow?
- Inboxy Pro, its only listed plan at $47/mo, allows 120 daily emails per inbox and connects to Gmail and Office 365 inboxes. This is compared to Growbots, whose plans allow up to 20, 100, or 500 emails per email account daily depending on the tier.
- What integrations does Growbots support compared to Inboxy?
- Growbots connects with Salesforce, HubSpot, Zapier, Gmail, Outlook, SMTP, and IMAP. Inboxy connects with Personal Gmail, Google Workspace, Outlook/Office via SMTP or OAuth, Mailgun, GoDaddy, Inboxroad, Sendgrid, and Custom SMTP.
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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