Closely vs Success.ai: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Closely (sales engagement platform) and Success.ai (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Closely is a sales engagement platform for multichannel outreach across LinkedIn and email with a conditional sequence builder, while Success.ai is a cold email platform built around AI Sales and Reply Operators and a 700M+ contact database. Both start at $49 per month, so the choice depends on whether coordinating multiple channels or scaling cold email volume matters more.
Key takeaways
- Closely's Starter plan costs $49/mo for 1 LinkedIn account with unlimited email accounts, while its Growth plan at $127/mo supports 3 LinkedIn accounts.
- Success.ai's Lite plan costs $49/mo and includes 2,000 tokens per month plus 5,000 emails per month with warm-up on 10 accounts.
- Success.ai's database contains over 700 million contacts with unlimited look-ups.
- Closely and Success.ai both integrate with Salesforce, Pipedrive, and HubSpot, but only Closely integrates with GoHighLevel.
- Closely offers a dedicated residential IP for each LinkedIn account, a feature not listed by Success.ai.
Reviewed and updated September 4, 2026
Closely vs Success.ai: Sales Engagement Platform vs Cold Email Platform Comparison
Closely (sales engagement platform) and Success.ai (cold email platform) 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; Success.ai is a cold email platform for cold email outreach. By each vendor's own wording, Closely lists multichannel campaigns across linkedin and email and conditional sequence builder, and Success.ai lists ai sales & reply operators and 700m+ database with unlimited look-ups.
Both start at the same price point ($49/mo), so the decision comes down to features and workflow fit.
If your priority is coordinating outreach across email, phone, and social channels, Closely is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Success.ai. 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.
Success.ai is Cold email outreach platform with unlimited email sending accounts, unlimited warmup, a unified inbox and a 700M+ contact B2B database. AI operators write campaigns and draft replies, and a token balance meters data reveals, enrichment and AI actions.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
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
Success.ai Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Lite | $49/mo | 2,000 tokens /mo for reveals, enrichment & AI; 700M+ database with unlimited look-ups | 5K emails /mo with warm-up on 10 accounts |
| Starter | $99/mo | 6,000 tokens /mo for reveals, enrichment & AI; 700M+ database with unlimited look-ups | 50K emails /mo with unlimited warm-up |
| Pro | $199/mo | 10,000 tokens /mo + advanced search filters | 150K emails /mo + advanced deliverability |
| Enterprise | Contact Sales | Custom tokens & unlimited email sending | Custom tokens & unlimited email sending |
Source: Success.ai Pricing
Pricing Analysis
Both platforms start at the same $49/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.
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
- AI Sales & Reply Operators
- 700M+ database with unlimited look-ups
- Unified InboxHub
- Data enrichment & email verification built in
- unlimited warm-up
- advanced search filters
- and 3 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
Success.ai Key Features
- AI Sales & Reply Operators
- 700M+ database with unlimited look-ups
- Unified InboxHub
- Data enrichment & email verification built in
- unlimited warm-up
- advanced search filters
- advanced deliverability
- Website Visitor identification
- 5 deal pipelines
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 Success.ai
- AI Sales & Reply Operators
- 700M+ database with unlimited look-ups
- Unified InboxHub
- Data enrichment & email verification built in
- unlimited warm-up
- advanced search filters
- advanced deliverability
- Website Visitor identification
- 5 deal pipelines
Integration Ecosystem
Closely Integrations
Closely connects with: Salesforce, Pipedrive, HubSpot, GoHighLevel, Gmail, Microsoft Outlook, SMTP, Webhooks.
Success.ai Integrations
Success.ai connects with: Zapier, HubSpot, Salesforce, Pipedrive, Slack.
Shared Integrations
Both tools integrate with: Salesforce, Pipedrive, HubSpot.
Integrations listed only by Closely: GoHighLevel, Gmail, Microsoft Outlook, SMTP, Webhooks.
Integrations listed only by Success.ai: Zapier, Slack.
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)
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Success.ai
- Budget-conscious teams looking for an affordable cold email platform
- Enterprise buyers who prefer custom pricing and dedicated support
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Feature Comparison Summary
| Feature | Closely | Success.ai |
|---|---|---|
| Starting Price | $49/mo | $49/mo |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 9 |
| Integrations | 8 | 5 |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and cold email outreach requirements and monthly budget
- Estimate your expected sequences and engagement actions and email sending 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
Closely serves the multi-channel sales outreach and engagement tracking side of an outbound stack and Success.ai the cold email outreach side. Closely offers a more accessible entry point at $49/mo, while Success.ai 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 Success.ai for current information.
Frequently asked questions.
Frequently asked questions- What's the main difference between Closely and Success.ai?
- Closely is a sales engagement platform built for multichannel outreach across LinkedIn and email, featuring a conditional sequence builder and unified inbox. Success.ai is a cold email platform centered on AI Sales and Reply Operators and a 700M+ contact database. Both start at $49/mo, so the right pick depends on whether multichannel coordination or cold email scale matters more.
- How much does Closely cost?
- Closely's Starter plan costs $49/mo for 1 LinkedIn account and unlimited email accounts. The Growth plan is $127/mo with 3 LinkedIn accounts and 3,000 bonus credits/mo, and the Essential plan is $205/mo with 5 LinkedIn accounts and 5,000 bonus credits/mo. A custom plan is available by contacting sales.
- How much does Success.ai cost?
- Success.ai's Lite plan costs $49/mo with 2,000 tokens/mo and 5,000 emails/mo across warm-up on 10 accounts. The Starter plan is $99/mo with 6,000 tokens/mo and 50,000 emails/mo, and the Pro plan is $199/mo with 10,000 tokens/mo plus 150,000 emails/mo. Enterprise pricing is custom.
- Do Closely and Success.ai integrate with the same tools?
- They share three integrations: Salesforce, Pipedrive, and HubSpot. Closely additionally connects with GoHighLevel, Gmail, Microsoft Outlook, SMTP, and Webhooks, while Success.ai additionally connects with Zapier and Slack.
- Can a team use both Closely and Success.ai together?
- Yes, the article notes many teams run one of each since the two platforms solve different parts of outbound. Closely handles multichannel campaign coordination across LinkedIn and email, while Success.ai focuses on cold email sending volume and reply generation through its AI operators.
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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