ContactOut vs Koncert: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare ContactOut (data enrichment tool) and Koncert (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
ContactOut is a data enrichment tool built for finding B2B contact data, offering a browser extension for LinkedIn and a 700M+ profile bulk license on its Team plan. Koncert is a sales engagement platform built around five dialers and Koncert Cadence, a multi-channel sequencer for calls, emails, text, video and social. Many teams run both.
Key takeaways
- ContactOut's Free plan includes 5 emails, 5 phones and 5 exports per day.
- ContactOut's Email plan costs $49/mo for 300 exports per month and unlimited emails.
- ContactOut's Email + Phone plan costs $99/mo for 600 exports per month with unlimited emails and phones.
- Koncert lists custom, Contact Sales pricing across all four of its plans: Melody, Symphony, Melody+ and Symphony+.
- Koncert's Symphony+ plan runs an AI Parallel Dialer across 1 to 5 lines, while ContactOut's Team plan includes a bulk license covering 700M+ profiles.
Reviewed and updated September 2, 2026
ContactOut vs Koncert: Data Enrichment Tool vs Sales Engagement Platform Comparison
ContactOut (data enrichment tool) and Koncert (sales engagement 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
ContactOut is a data enrichment tool for B2B lead data and contact enrichment; Koncert is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, ContactOut lists one user per company limit on free, email and email + phone plans and browser extension for linkedin, and Koncert lists koncert cadence multi-channel sequencer across calls, emails, text, video and social and ai parallel dialer running 1 to 5 lines.
ContactOut publishes an entry price of $0/mo; Koncert uses custom pricing, so the two cannot be compared on list price.
If your priority is finding accurate contact data for target accounts, ContactOut is the one built for it; for coordinating outreach across email, phone, and social channels, that is Koncert. Many teams run one of each.
Understanding the Core Difference
ContactOut is Email and phone finder with a LinkedIn-focused browser extension, AI-powered email campaigns, and a 700M+ profile bulk license on the Team plan.
Koncert is Multi-channel sales engagement platform built around five sales dialers plus Koncert Cadence, a sequencer that runs phone, email, video, text and social touchpoints with bi-directional CRM sync.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Free
Melody (AI Flow Dialer)
ContactOut Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 5 emails, 5 phones and 5 exports per day | 5 emails / day |
| $49/mo | 300 exports / month | Unlimited emails | |
| Email + Phone | $99/mo | 600 exports / month | Unlimited emails and unlimited phones |
| Team / API | Contact Sales | Bulk license, 700M+ profiles | Contact us |
Source: ContactOut Pricing
Koncert Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Melody (AI Flow Dialer) | Contact Sales | Single-Line Power Dialer |
| Symphony (AI Parallel Dialer) | Contact Sales | 1 to 4 lines |
| Melody+ (AI Flow Dialer) | Contact Sales | Single-Line Power Dialer |
| Symphony+ (AI Parallel Dialer) | Contact Sales | 1 to 5 lines |
Source: Koncert Pricing
Pricing Analysis
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
ContactOut includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- One user per company limit on Free, Email and Email + Phone plans
- Browser extension for LinkedIn
- Email campaigns
- AI email writer
- Data enrichment
- List builder
- and 3 more listed below
- Koncert Cadence multi-channel sequencer across calls, emails, text, video and social
- AI Parallel Dialer running 1 to 5 lines
- AI Flow Dialer single-line power dialer
- Remote Coach for live and recorded call listening
- Whisper Mode for live coaching during a call
- Fully managed Caller ID reputation with a heat map
- and 4 more listed below
ContactOut Key Features
- One user per company limit on Free, Email and Email + Phone plans
- Browser extension for LinkedIn
- Email campaigns
- AI email writer
- Data enrichment
- List builder
- Search portal
- Bulk license (700M+ profiles on Team)
- CSV export
Koncert Key Features
- Koncert Cadence multi-channel sequencer across calls, emails, text, video and social
- AI Parallel Dialer running 1 to 5 lines
- AI Flow Dialer single-line power dialer
- Remote Coach for live and recorded call listening
- Whisper Mode for live coaching during a call
- Fully managed Caller ID reputation with a heat map
- Automated local presence caller IDs
- Voicemail sequencing and voicemail drop
- AI objection detection with AI summary notes and transcriptions
- DataGenie waterfall data enrichment
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 ContactOut
- One user per company limit on Free, Email and Email + Phone plans
- Browser extension for LinkedIn
- Email campaigns
- AI email writer
- Data enrichment
- List builder
- Search portal
- Bulk license (700M+ profiles on Team)
- CSV export
Listed only by Koncert
- Koncert Cadence multi-channel sequencer across calls, emails, text, video and social
- AI Parallel Dialer running 1 to 5 lines
- AI Flow Dialer single-line power dialer
- Remote Coach for live and recorded call listening
- Whisper Mode for live coaching during a call
- Fully managed Caller ID reputation with a heat map
- Automated local presence caller IDs
- Voicemail sequencing and voicemail drop
- AI objection detection with AI summary notes and transcriptions
- DataGenie waterfall data enrichment
Integration Ecosystem
ContactOut Integrations
ContactOut connects with: Salesforce, HubSpot, Greenhouse, Lever, Bullhorn, Zapier, Gmail, Outlook.
Koncert Integrations
Koncert connects with: Salesforce, HubSpot, Outreach, SalesLoft, Slack, Gong, Apollo.io.
Shared Integrations
Both tools integrate with: Salesforce, HubSpot.
Integrations listed only by ContactOut: Greenhouse, Lever, Bullhorn, Zapier, Gmail, Outlook.
Integrations listed only by Koncert: Outreach, SalesLoft, Slack, Gong, Apollo.io.
Use Case Recommendations
Best Fit for ContactOut
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Koncert
- Teams that need a wide feature set (10 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
Feature Comparison Summary
| Feature | ContactOut | Koncert |
|---|---|---|
| Starting Price | Free | Contact Sales |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 9 | 10 |
| Integrations | 8 | 7 |
| Founded | 2015 | N/A |
Getting Started Checklist
- Define your B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected data credits or contact lookups 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
ContactOut serves the B2B lead data and contact enrichment side of an outbound stack and Koncert the multi-channel sales outreach and engagement tracking side. ContactOut publishes an entry price (a free tier), while Koncert uses custom pricing for its plans, so compare on features and on the quote you receive. 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 ContactOut and Koncert for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between ContactOut and Koncert?
- ContactOut is a data enrichment tool focused on finding B2B contact data, with a LinkedIn browser extension and email and phone lookups. Koncert is a sales engagement platform built around five dialers and Koncert Cadence, a multi-channel sequencer covering calls, emails, text, video and social touchpoints with bi-directional CRM sync.
- How much does ContactOut cost?
- ContactOut has a free plan offering 5 emails, 5 phones and 5 exports per day. Paid plans include Email at $49/mo for 300 exports per month with unlimited emails, and Email + Phone at $99/mo for 600 exports per month with unlimited emails and phones. The Team/API plan requires contacting sales.
- How much does Koncert cost?
- Koncert does not publish list pricing. All four of its plans, Melody, Symphony, Melody+ and Symphony+, are listed as Contact Sales, meaning you need to reach out to Koncert's sales team for a custom quote based on your usage needs.
- Should I use ContactOut and Koncert together?
- Many teams do run both, since they solve different problems. ContactOut is built for finding accurate contact data for target accounts, while Koncert is built for coordinating outreach across email, phone and social channels once you have that data, so the two tools can complement each other in a stack.
- What does ContactOut integrate with?
- ContactOut connects with Salesforce, HubSpot, Greenhouse, Lever, Bullhorn, Zapier, Gmail, and Outlook, according to the article's listed integrations for the platform.
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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