Kaspr vs TheirStack: Data Enrichment Tool Comparison
Compare Kaspr and TheirStack side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Kaspr is a B2B contact data tool built around a LinkedIn Chrome extension for phone numbers and email addresses, plus lead management and CRM sync, while TheirStack is a job posting and technographics database that finds companies by the technologies they use and the roles they are hiring for. Both start at $0 per month on their free tiers.
Key takeaways
- Kaspr's paid plans start at $65 per month for the Starter tier and $99 per month for the Business tier, both including unlimited B2B email credits.
- TheirStack's API, Webhooks and MCP plan costs $49 per month and includes 1,500 API credits.
- Kaspr integrates with 9 platforms including HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Ringover, Aircall, and Zapier.
- TheirStack integrates with 5 platforms including Clay, LinkedIn Audiences, Make, N8N, and Zapier.
- TheirStack was founded in 2021, while Kaspr's founding year is not listed in the comparison.
Reviewed and updated September 4, 2026
Kaspr vs TheirStack: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Kaspr and TheirStack will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.
The Quick Answer
By each vendor's own wording, Kaspr lists kaspr chrome extension and lead management, while TheirStack lists job search and company search. A capability both offer can appear under different names, so read both feature lists below.
Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.
If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
Kaspr is B2B contact data tool with a LinkedIn Chrome extension for phone numbers and email addresses, lead management, bulk enrichment and CRM sync.
TheirStack is Job posting and technographics database for sales teams. Finds companies by the technologies they use and the roles they are hiring for, and enriches a company list with technographics and buying intent.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Kaspr Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 15 B2B email credits, 5 Phone credits and 5 Direct email credits per month |
| Starter | $65/mo | Unlimited B2B email credits, 100 Phone credits and 5 Direct email credits per month |
| Business | $99/mo | Unlimited B2B email credits, 200 Phone credits and 200 Direct email credits per month |
| Enterprise | Contact Sales | Unlimited B2B email credits and unlimited Phone credits |
Source: Kaspr Pricing
TheirStack Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 50 company credits and 200 API credits per month |
| App | Usage-based | Company credit packs from 1,000 to 200,000 credits |
| API, Webhooks & MCP | $49/mo | 1,500 API credits per month |
| Datasets | Contact Sales | Jobs, Technographics and Buying intents datasets |
Source: TheirStack Pricing
Pricing Analysis
Both platforms start at the same $0/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- Kaspr Chrome Extension
- Lead Management
- Enrichment Automations
- CSV Enrichment
- Kaspr on Sales Navigator
- Shared credits
- and 2 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Kaspr Key Features
- Kaspr Chrome Extension
- Lead Management
- Enrichment Automations
- CSV Enrichment
- Kaspr on Sales Navigator
- Shared credits
- Kaspr on LinkedIn Recruiter Lite
- Team Usage Reports
TheirStack Key Features
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
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 Kaspr
- Kaspr Chrome Extension
- Lead Management
- Enrichment Automations
- CSV Enrichment
- Kaspr on Sales Navigator
- Shared credits
- Kaspr on LinkedIn Recruiter Lite
- Team Usage Reports
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Kaspr Integrations
Kaspr connects with: HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Zapier, Ringover, Aircall.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by Kaspr: HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Ringover, Aircall.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N.
Use Case Recommendations
Best Fit for Kaspr
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (9 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 TheirStack
- Budget-conscious teams looking for an affordable data enrichment tool
- 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 | Kaspr | TheirStack |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 8 |
| Integrations | 9 | 5 |
| Founded | N/A | 2021 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected 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
Kaspr and TheirStack both serve the B2B lead data and contact enrichment market. Kaspr offers a more accessible entry point, while TheirStack starts at $0/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 Kaspr and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Kaspr and TheirStack?
- Kaspr is a B2B contact data tool centered on a LinkedIn Chrome extension for finding phone numbers and email addresses, along with lead management and CRM sync. TheirStack is a job posting and technographics database that finds companies by the technologies they use and the roles they are hiring for, then enriches company lists with technographics and buying intent.
- How much does Kaspr cost?
- Kaspr's free plan includes 15 B2B email credits, 5 phone credits, and 5 direct email credits per month. The Starter plan is $65 per month with unlimited B2B email credits and 100 phone credits, the Business plan is $99 per month with 200 phone and 200 direct email credits, and Enterprise requires contacting sales.
- How much does TheirStack cost?
- TheirStack's free plan includes 50 company credits and 200 API credits per month. The App plan is usage-based with company credit packs from 1,000 to 200,000 credits, the API, Webhooks and MCP plan costs $49 per month for 1,500 API credits, and the Datasets plan requires contacting sales.
- Which integrations does each tool support?
- Kaspr integrates with HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Zapier, Ringover, and Aircall, totaling 9 integrations. TheirStack integrates with Clay, LinkedIn Audiences, Make, N8N, and Zapier, totaling 5 integrations. Zapier is the only integration the two tools share.
- Which tool is better for a budget-conscious team?
- Both Kaspr and TheirStack are listed as good fits for budget-conscious teams looking for an affordable data enrichment tool, since both offer free tiers that let teams start free and scale up as needs grow. The better fit depends on whether a team needs Kaspr's broader integration support or TheirStack's job and technographic data.
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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