Closely vs Kickbox: Sales Engagement Platform vs Data Enrichment Tool Comparison
Compare Closely (sales engagement platform) and Kickbox (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Closely and Kickbox are not direct competitors: Closely is a sales engagement platform for multichannel LinkedIn and email outreach starting at $49/mo, while Kickbox is an email verification and data enrichment tool with a free tier covering 100 verifications. Teams needing outreach coordination should choose Closely, teams needing contact data accuracy should choose Kickbox, and many run both together.
Key takeaways
- Closely's Starter plan costs $49/mo and includes 1 LinkedIn account with unlimited email accounts.
- Kickbox offers a free tier that includes 100 email verifications with no cost.
- Closely publishes 4 pricing tiers (Starter, Growth, Essential, Custom) compared to Kickbox's 3 tiers.
- Closely and Kickbox share integrations with Salesforce and HubSpot.
- Kickbox's Enterprise plan supports more than 1,000,000 verifications and is available through custom sales contact.
Reviewed and updated September 4, 2026
Closely vs Kickbox: Sales Engagement Platform vs Data Enrichment Tool Comparison
Closely (sales engagement platform) and Kickbox (data enrichment tool) sit next to each other in many outbound stacks. They are not substitutes for each other on every job, so this comparison covers pricing, features, and integrations for each and points out where the two meet.
The Quick Answer
Closely is a sales engagement platform for multi-channel sales outreach and engagement tracking; Kickbox is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, Closely lists multichannel campaigns across linkedin and email and conditional sequence builder, and Kickbox lists email list verification and email verification api.
Kickbox offers a lower entry point at $0/mo compared to Closely at $49/mo.
If your priority is coordinating outreach across email, phone, and social channels, Closely is the one built for it; for finding accurate contact data for target accounts, that is Kickbox. Many teams run one of each.
Understanding the Core Difference
Closely is Outbound platform that runs automated campaigns across LinkedIn and email from a shared sender, with a conditional sequence builder, unified inbox, contact enrichment and AI personalization agents.
Kickbox is Email verification platform that checks list and database addresses for deliverability, flagging invalid, risky, disposable, role-based and accept-all addresses, through bulk list verification and a real-time API.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Free
Closely Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Starter | $49/mo | 1 LinkedIn account, unlimited email accounts |
| Growth | $127/mo | 3 LinkedIn accounts, unlimited email accounts, 3,000 bonus credits/mo |
| Essential | $205/mo | 5 LinkedIn accounts, unlimited email accounts, 5,000 bonus credits/mo |
| Custom | Contact Sales | Unlimited seats, custom LinkedIn accounts and credits |
Source: Closely Pricing
Kickbox Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Free | Free | 100 verifications |
| Verification credits | Usage-based | 500 verifications at the entry paid step |
| Enterprise | Contact Sales | More than 1,000,000 verifications |
Source: Kickbox Pricing
Pricing Analysis
Kickbox offers the lower entry point ($0/mo vs $49/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Closely offers 4 pricing tiers compared to Kickbox's 3, giving you more granularity as you scale.
Kickbox includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Multichannel campaigns across LinkedIn and email
- Conditional sequence builder
- Smart Inbox unifying LinkedIn and email replies
- LinkedIn account warmup
- Dedicated residential IP for each LinkedIn account
- OAuth Gmail and Outlook connection plus custom SMTP
- and 4 more listed below
- Email List Verification
- Email Verification API
- Deliverability Consulting
- Unknown Verification Results Are Free
- Volume Discounts
- Email Spam Checker
- and 2 more listed below
Closely Key Features
- Multichannel campaigns across LinkedIn and email
- Conditional sequence builder
- Smart Inbox unifying LinkedIn and email replies
- LinkedIn account warmup
- Dedicated residential IP for each LinkedIn account
- OAuth Gmail and Outlook connection plus custom SMTP
- Email finder with a multi-step fallback process
- Phone number finder
- AI lead scoring and personalization agents
- Export from Sales Navigator, LinkedIn posts and events
Kickbox Key Features
- Email List Verification
- Email Verification API
- Deliverability Consulting
- Unknown Verification Results Are Free
- Volume Discounts
- Email Spam Checker
- Disposable Email Checker
- Email list & database cleanup
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 Closely
- Multichannel campaigns across LinkedIn and email
- Conditional sequence builder
- Smart Inbox unifying LinkedIn and email replies
- LinkedIn account warmup
- Dedicated residential IP for each LinkedIn account
- OAuth Gmail and Outlook connection plus custom SMTP
- Email finder with a multi-step fallback process
- Phone number finder
- AI lead scoring and personalization agents
- Export from Sales Navigator, LinkedIn posts and events
Listed only by Kickbox
- Email List Verification
- Email Verification API
- Deliverability Consulting
- Unknown Verification Results Are Free
- Volume Discounts
- Email Spam Checker
- Disposable Email Checker
- Email list & database cleanup
Integration Ecosystem
Closely Integrations
Closely connects with: Salesforce, Pipedrive, HubSpot, GoHighLevel, Gmail, Microsoft Outlook, SMTP, Webhooks.
Kickbox Integrations
Kickbox connects with: HubSpot, Salesforce, Mailchimp, Klaviyo, Marketo, ActiveCampaign, Braze, SendGrid, Iterable, Zapier.
Shared Integrations
Both tools integrate with: Salesforce, HubSpot.
Integrations listed only by Closely: Pipedrive, GoHighLevel, Gmail, Microsoft Outlook, SMTP, Webhooks.
Integrations listed only by Kickbox: Mailchimp, Klaviyo, Marketo, ActiveCampaign, Braze, SendGrid, Iterable, Zapier.
Use Case Recommendations
Best Fit for Closely
- Budget-conscious teams looking for an affordable sales engagement platform
- Teams that need a wide feature set (10 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Kickbox
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (10 integrations)
- 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 | Closely | Kickbox |
|---|---|---|
| Starting Price | $49/mo | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 8 |
| Integrations | 8 | 10 |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected sequences and engagement actions and data credits or contact lookups 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
Closely serves the multi-channel sales outreach and engagement tracking side of an outbound stack and Kickbox the B2B lead data and contact enrichment side. Kickbox offers a more accessible entry point, while Closely starts at $49/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 Closely and Kickbox for current information.
Frequently asked questions.
Frequently asked questions- Is Closely a replacement for Kickbox?
- No, they solve different problems. Closely is a sales engagement platform built for running multichannel campaigns across LinkedIn and email with a conditional sequence builder, while Kickbox focuses on verifying email lists and flagging invalid, risky, or disposable addresses. Many teams use both tools together rather than choosing one over the other.
- How much does Closely cost?
- Closely's Starter plan costs $49/mo and includes 1 LinkedIn account with unlimited email accounts. Higher tiers include Growth at $127/mo with 3 LinkedIn accounts and bonus credits, and Essential at $205/mo with 5 LinkedIn accounts. A Custom plan with unlimited seats is available by contacting sales.
- How much does Kickbox cost?
- Kickbox has a free tier that includes 100 verifications at no cost. Above that, it moves to usage-based verification credits, with 500 verifications available at the entry paid step. An Enterprise plan supporting more than 1,000,000 verifications is available by contacting sales.
- Do Closely and Kickbox integrate with the same tools?
- They overlap on two integrations: Salesforce and HubSpot. Beyond that, Closely also connects with Pipedrive, GoHighLevel, Gmail, Microsoft Outlook, SMTP, and Webhooks, while Kickbox additionally connects with Mailchimp, Klaviyo, Marketo, ActiveCampaign, Braze, SendGrid, Iterable, and Zapier.
- Which tool is better for finding accurate contact data?
- Kickbox is the better fit for finding accurate contact data, since it is built specifically for email list verification and flagging invalid, risky, disposable, role-based, and accept-all addresses. Closely also offers contact enrichment features, but its core purpose is running outreach campaigns rather than verifying data accuracy.
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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