NuReply vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
Compare NuReply (cold email platform) and Warmforge (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
NuReply is a cold email platform for outreach campaigns, while Warmforge is an email warmup tool for building sender reputation and deliverability. NuReply starts at $25/mo with unlimited sequences and warm-up; Warmforge starts at $12/mo with email warm up and health checks. Many teams use both together, one for sending, one for deliverability.
Key takeaways
- NuReply's Starter plan costs $25/mo and includes 10,000 contacts, 500 AI credits, 30,000 monthly emails and 50 email accounts.
- Warmforge's Email Warm Up plan costs $12/mo per slot, with each slot covering one mailbox and one free slot included.
- NuReply offers 6 pricing tiers ranging from $25/mo to $400/mo, while Warmforge offers 3 pricing tiers.
- Warmforge tracks a per-mailbox Heat Score and includes DNS, MX and blacklist health checks plus placement tests.
- Both NuReply and Warmforge integrate with Gmail and Outlook, but NuReply also connects with HubSpot, Zapier and SMTP while Warmforge connects natively with Salesforge and Mailforge.
Reviewed and updated September 4, 2026
NuReply vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
NuReply is a cold email platform; Warmforge 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
NuReply is a cold email platform for cold email outreach; Warmforge is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, NuReply lists unlimited warm-up and unlimited sequences, and Warmforge lists email warm up and monitoring & health checks.
Warmforge offers a lower entry point at $12/mo compared to NuReply at $25/mo.
If your priority is sending campaigns that land in the inbox and generate replies, NuReply is the one built for it; for building sender reputation and improving inbox placement, that is Warmforge. Many teams run one of each.
Understanding the Core Difference
NuReply is AI cold email outreach platform that personalizes each email with AI, warms up sender reputation and runs multi-step campaigns across many connected sending accounts. Plans are metered by email accounts, AI credits, stored contacts and monthly email volume. Operated by DuoCircle LLC.
Warmforge is Email warm up tool from the Forge Ecosystem that warms mailboxes with AI-written emails and tracks a per-mailbox Heat Score. Adds DNS, MX and blacklist health checks, placement tests and automatic removal of warm-up mail that lands in spam.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Email Warm Up (per slot)
NuReply Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $25/mo | 10,000 contacts; 500 AI credits | 30,000 monthly emails; 50 email accounts |
| Launch | $50/mo | 25,000 contacts; 1,200 AI credits | 80,000 monthly emails; 100 email accounts |
| Growth | $100/mo | 50,000 contacts; 3,000 AI credits | 160,000 monthly emails; 250 email accounts |
| Scale | $200/mo | 100,000 contacts; 5,000 AI credits | 350,000 monthly emails; 500 email accounts |
| Pro | $300/mo | 175,000 contacts; 7,000 AI credits | 700,000 monthly emails; 800 email accounts |
| Enterprise | $400/mo | 250,000 contacts; 9,000 AI credits | 1,000,000 monthly emails; 1,500 email accounts |
Source: NuReply Pricing
Warmforge Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Warm Up (per slot) | $12/mo | 1 slot covers 1 mailbox; 1 free slot included | Automated AI email warm up; 1 free placement test per month |
| Placement Tests Pro Plan | $39/mo | 50 mailboxes per test | 100 tests per month |
| Placement Tests Growth Plan | $169/mo | 250 mailboxes per test | Unlimited tests |
Source: Warmforge Pricing
Pricing Analysis
Warmforge offers the lower entry point ($12/mo vs $25/mo). Teams watching their budget will appreciate the savings, especially when starting out.
NuReply offers 6 pricing tiers compared to Warmforge's 3, giving you more granularity as you scale.
Features Breakdown
- Unlimited Warm-up
- Unlimited Sequences
- Cold Email Writer
- Sentiment Analysis
- Multi-Variant Testing
- ESP Routing
- and 2 more listed below
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- and 2 more listed below
NuReply Key Features
- Unlimited Warm-up
- Unlimited Sequences
- Cold Email Writer
- Sentiment Analysis
- Multi-Variant Testing
- ESP Routing
- API Access
- Email Warmer
Warmforge Key Features
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
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 NuReply
- Unlimited Warm-up
- Unlimited Sequences
- Cold Email Writer
- Sentiment Analysis
- Multi-Variant Testing
- ESP Routing
- API Access
- Email Warmer
Listed only by Warmforge
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
Integration Ecosystem
NuReply Integrations
NuReply connects with: Gmail, Outlook, HubSpot, Zapier, SMTP.
Warmforge Integrations
Warmforge connects with: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Shared Integrations
Both tools integrate with: Gmail, Outlook.
Integrations listed only by NuReply: HubSpot, Zapier, SMTP.
Integrations listed only by Warmforge: Google Workspace, Microsoft 365, Salesforge (native), Mailforge (native).
Use Case Recommendations
Best Fit for NuReply
- Budget-conscious teams looking for an affordable cold email platform
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
- SDR teams focused on pipeline generation
Best Fit for Warmforge
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (6 integrations)
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Feature Comparison Summary
| Feature | NuReply | Warmforge |
|---|---|---|
| Starting Price | $25/mo | $12/mo |
| Top Tier Price | $400/mo | $169/mo |
| Total Features Listed | 8 | 8 |
| Integrations | 5 | 6 |
| Founded | N/A | 2024 |
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
NuReply serves the cold email outreach side of an outbound stack and Warmforge the email domain warming and deliverability side. Warmforge offers a more accessible entry point at $12/mo, while NuReply starts at $25/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 NuReply and Warmforge for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between NuReply and Warmforge?
- NuReply is a cold email platform built for outreach campaigns, personalizing emails with AI and running multi-step sequences across connected sending accounts. Warmforge is an email warmup tool focused on building sender reputation, tracking a per-mailbox Heat Score and running deliverability health checks. They address different parts of the email workflow.
- Which is cheaper, NuReply or Warmforge?
- Warmforge has the lower entry price at $12/mo per slot, compared to NuReply's Starter plan at $25/mo. Warmforge's entry plan covers one mailbox with one free slot included, while NuReply's Starter plan includes 10,000 contacts, 500 AI credits and 30,000 monthly emails.
- Do I need both NuReply and Warmforge?
- The article notes that many teams run one of each because the tools serve different needs: NuReply for sending campaigns that land in the inbox and generate replies, and Warmforge for building sender reputation and improving inbox placement. Whether you need both depends on your workflow priorities.
- What integrations does NuReply support compared to Warmforge?
- NuReply integrates with Gmail, Outlook, HubSpot, Zapier and SMTP. Warmforge integrates with Google Workspace, Microsoft 365, Gmail, Outlook, and natively with Salesforge and Mailforge. Both tools share Gmail and Outlook integrations, but each has integrations unique to its own ecosystem.
- Who operates NuReply and Warmforge?
- NuReply is operated by DuoCircle LLC and functions as an AI cold email outreach platform. Warmforge is an email warmup tool that is part of the Forge Ecosystem, which also includes Salesforge and Mailforge as native integrations.
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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