Reply.io vs Zeliq: Cold Email Platform vs Sales Engagement Platform Comparison
Compare Reply.io (cold email platform) and Zeliq (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reply.io is a cold email platform built for inbox deliverability and reply generation, while Zeliq is a sales engagement platform for multichannel outreach across email, call, and social. Reply.io starts at $59/mo with unlimited email warmup and a 1 billion contact database; Zeliq starts free and adds lead search, enrichment, and a connected dialer.
Key takeaways
- Reply.io's entry plan costs $59/mo while Zeliq offers a free Basic plan, giving Zeliq the lower entry point.
- Reply.io offers 4 pricing tiers (Email Volume, Multichannel, Agency Core, AI SDR Starter) compared to Zeliq's 3 tiers (Basic, Starter, Custom).
- Reply.io lists a 1 billion B2B contacts database and unlimited email warmup among its key features.
- Zeliq lists multichannel sequences across email, call, and social plus a waterfall enrichment hub among its key features.
- Both platforms integrate with HubSpot, Salesforce, and Pipedrive, but Reply.io adds Zapier, Make, and n8n while Zeliq adds Aircall, Ringover, Gmail, and Microsoft.
Reviewed and updated September 2, 2026
Reply.io vs Zeliq: Cold Email Platform vs Sales Engagement Platform Comparison
Reply.io is a cold email platform; Zeliq is a sales engagement platform. 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, multi-channel sales outreach and engagement tracking on the other. This guide lays out what each vendor publishes.
The Quick Answer
Reply.io is a cold email platform for cold email outreach; Zeliq is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, Reply.io lists unlimited email warmup and 1 billion b2b contacts database, and Zeliq lists multichannel sequences across email, call and social and lead search with basic and advanced filters.
Zeliq offers a lower entry point at $0/mo compared to Reply.io at $59/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Reply.io is the one built for it; for coordinating outreach across email, phone, and social channels, that is Zeliq. Many teams run one of each.
Understanding the Core Difference
Reply.io is AI-powered sales engagement platform with 1B+ B2B contacts, multichannel sequences, and AI SDR capabilities.
Zeliq is Sales prospecting and engagement platform that combines a lead search and waterfall enrichment hub with multichannel sequences across email, calls and social, plus a connected dialer and CRM sync.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Email Volume
Basic
Reply.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Volume | $59/mo | 1,000 active contacts | Unlimited |
| Multichannel | $99/mo | Unlimited active contacts | Unlimited emails; 10 mailboxes |
| Agency Core | $210/mo | Unlimited clients & users | Unlimited mailboxes |
| AI SDR Starter | $800/mo | 1,000 active contacts | Unlimited mailboxes & warm-ups |
Source: Reply.io Pricing
Zeliq Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | Free | Import up to 100 leads per month | Run 2 active sequences (emails only) |
| Starter | $59/mo | 750 credits / month | 75 phone numbers or 750 emails |
| Custom | Contact Sales | Starts as from 24k credits/user/year | - |
Source: Zeliq Pricing
Pricing Analysis
Zeliq offers the lower entry point ($0/mo vs $59/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Reply.io offers 4 pricing tiers compared to Zeliq's 3, giving you more granularity as you scale.
Zeliq includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- and 3 more listed below
- Multichannel sequences across email, call and social
- Lead search with basic and advanced filters
- Enrichment Hub with waterfall enrichment
- Chrome extension for enrichment
- Lead engagement scoring
- Dialer connection for calling from the platform
- and 4 more listed below
Reply.io Key Features
- 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
Zeliq Key Features
- Multichannel sequences across email, call and social
- Lead search with basic and advanced filters
- Enrichment Hub with waterfall enrichment
- Chrome extension for enrichment
- Lead engagement scoring
- Dialer connection for calling from the platform
- Social automation
- SDR and manager cockpits for reporting
- Two-way CRM integration to pull and push records
- Enrichment API
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 Reply.io
- 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
Listed only by Zeliq
- Multichannel sequences across email, call and social
- Lead search with basic and advanced filters
- Enrichment Hub with waterfall enrichment
- Chrome extension for enrichment
- Lead engagement scoring
- Dialer connection for calling from the platform
- Social automation
- SDR and manager cockpits for reporting
- Two-way CRM integration to pull and push records
- Enrichment API
Integration Ecosystem
Reply.io Integrations
Reply.io connects with: HubSpot, Salesforce, Pipedrive, Copper CRM, Zendesk Sell, Close, Zapier, Make, n8n.
Zeliq Integrations
Zeliq connects with: HubSpot, Salesforce, Pipedrive, Aircall, Ringover, Gmail, Microsoft, API.
Shared Integrations
Both tools integrate with: HubSpot, Salesforce, Pipedrive.
Integrations listed only by Reply.io: Copper CRM, Zendesk Sell, Close, Zapier, Make, n8n.
Integrations listed only by Zeliq: Aircall, Ringover, Gmail, Microsoft, API.
Use Case Recommendations
Best Fit for Reply.io
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
- SDR teams focused on pipeline generation
Best Fit for Zeliq
- Budget-conscious teams looking for an affordable sales engagement platform
- Teams that need a wide feature set (10 capabilities listed)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Reply.io | Zeliq |
|---|---|---|
| Starting Price | $59/mo | Free |
| Top Tier Price | $800/mo | Contact Sales |
| Total Features Listed | 9 | 10 |
| Integrations | 9 | 8 |
Getting Started Checklist
- Define your cold email outreach and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected email sending volume and sequences and engagement actions 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
Reply.io serves the cold email outreach side of an outbound stack and Zeliq the multi-channel sales outreach and engagement tracking side. Zeliq offers a more accessible entry point, while Reply.io starts at $59/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 Reply.io and Zeliq for current information.
Frequently asked questions.
Frequently asked questions- What's the main difference between Reply.io and Zeliq?
- Reply.io is a cold email platform focused on inbox deliverability and generating replies, while Zeliq is a sales engagement platform designed for multichannel outreach across email, call, and social, along with engagement tracking. The two tools address different parts of the outreach workflow.
- How much does Reply.io cost compared to Zeliq?
- Reply.io's entry plan, Email Volume, is $59/mo, while Zeliq offers a free Basic plan and a Starter plan also priced at $59/mo. Zeliq's Custom tier is available by contacting sales, giving Zeliq a lower entry point overall.
- Does Zeliq have a free plan?
- Yes, Zeliq's Basic plan is free and allows users to import up to 100 leads per month and run 2 active sequences using email only. This makes it possible to evaluate the platform without any upfront cost.
- What integrations do Reply.io and Zeliq share?
- Both platforms integrate with HubSpot, Salesforce, and Pipedrive. Reply.io additionally connects with Copper CRM, Zendesk Sell, Close, Zapier, Make, and n8n, while Zeliq adds Aircall, Ringover, Gmail, Microsoft, and a general API.
- Can I use both Reply.io and Zeliq together?
- Yes, the article notes that many teams run one of each tool. Reply.io handles cold email deliverability and reply generation, while Zeliq coordinates outreach across email, phone, and social channels, so they can complement rather than replace each other.
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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