Warmup Inbox vs Reply.io: Which Should You Choose in 2026?
Choosing between Warmup Inbox and Reply.io comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Warmup Inbox
Improve email deliverability and avoid spam folders by warming up your inbox.
Best for you if:
- • You need email marketing features specifically
- • Automatically warms up email inboxes to improve deliverability.
- • Builds sender reputation by simulating natural email activity with a network of real inboxes.
Reply.io
Sales engagement and automation platform
Best for you if:
- • You want the higher-rated option (8.2/10 vs 0.0/10)
- • You need marketing automation features specifically
- • Reply.io is a sales engagement platform for automated outreach
- • It creates multichannel sequences across email, LinkedIn, and calls
| At a Glance |  Warmup Inbox |  Reply.io |
|---|---|---|
Price | Paid | Paid |
Best For | Email Marketing | Marketing Automation |
Rating | —/100 | 82/100 |
| Feature | Warmup Inbox | Reply.io |
|---|---|---|
| Pricing Model | Paid | Paid |
| Editorial Score | — | 82 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Email MarketingEmail Deliverability | Marketing AutomationSales Engagement |
How Warmup Inbox and Reply.io Compare
Warmup Inbox
Improve email deliverability and avoid spam folders by warming up your inbox.
Paid
Reply.io
Sales engagement and automation platform
Paid · 82/100 score
Warmup Inbox is a email marketing tool. Reply.io is in marketing automation.
Who Should Use What?
On a budget?
Both are paid. Compare plans on their websites.
Go with: Reply.io
Want the highest-rated option?
Reply.io scores 82/100. Warmup Inbox is unrated.
Go with: Reply.io
Value user reviews?
Neither has user reviews yet.
Go with: Reply.io
3 Questions to Help You Decide
What's your budget?
Both are paid. Pricing won't help you decide here.
What's your use case?
Warmup Inbox is a email marketing tool. Reply.io is in marketing automation. Pick the category that matches your needs.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
Reply.io
- Higher score: 82/100 vs unrated
- Our pick for this comparison
Warmup Inbox
- Better fit for email marketing
The Bottom Line
Reply.io (82/100) is our pick.
Frequently Asked Questions
Is Warmup Inbox or Reply.io better?
Reply.io scores 82/100 in our evaluation. Both are paid.
What are Warmup Inbox and Reply.io used for?
Warmup Inbox: Improve email deliverability and avoid spam folders by warming up your inbox.. Reply.io: Sales engagement and automation platform.
What does Warmup Inbox cost vs Reply.io?
Warmup Inbox is a paid tool. Reply.io is a paid tool. Visit their websites for detailed pricing.