Kylas vs TheirStack: CRM Platform vs Data Enrichment Tool Comparison
Compare Kylas (CRM platform) and TheirStack (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Kylas is a CRM platform for customer relationship management and sales pipeline tracking, while TheirStack is a data enrichment tool for B2B lead data and contact enrichment. Both start free at $0/mo, so the choice depends on whether a team needs pipeline and deal tracking or job posting and technographics data for finding accounts.
Key takeaways
- Kylas's Elevate plan costs $175/mo and includes 100,000 expandable contact records with unlimited users.
- TheirStack's API, Webhooks and MCP plan costs $49/mo and includes 1,500 API credits per month.
- TheirStack offers 4 pricing tiers compared to Kylas's 3 tiers.
- Kylas lists 8 integrations including Aircall and Apollo.io, while TheirStack lists 5 integrations including Clay and Zapier.
- TheirStack was founded in 2021, while the article lists Kylas's founding date as not available.
Reviewed and updated September 4, 2026
Kylas vs TheirStack: CRM Platform vs Data Enrichment Tool Comparison
Sales teams building an outbound stack often weigh Kylas, a CRM platform for customer relationship management and sales pipeline tracking, against TheirStack, a data enrichment tool for B2B lead data and contact enrichment. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
Kylas is a CRM platform for customer relationship management and sales pipeline tracking; TheirStack is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, Kylas lists lead management with customizable lead pipelines and contact management, and TheirStack lists job search and company search.
Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.
If your priority is organizing contacts, tracking deals, and forecasting revenue, Kylas is the one built for it; for finding accurate contact data for target accounts, that is TheirStack. Many teams run one of each.
Understanding the Core Difference
Kylas is Kylas Sales CRM helps growing businesses streamline sales efforts with lead, contact, company and deal management, customizable pipelines and quotations. Paid pricing is a flat fee for the whole organization with unlimited users rather than a per-seat rate.
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
Kylas Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Embark | Free | 10,000 Records (Non-expandable); Unlimited Users |
| Elevate | $175/mo | 100,000 Records (Expandable); Unlimited Users |
| Exceed | Contact Sales | Unlimited Users |
Source: Kylas 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.
TheirStack offers 4 pricing tiers compared to Kylas's 3, giving you more granularity as you scale.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- Lead management with customizable lead pipelines
- Contact Management
- Company Management
- Deals Management
- Pipeline Management
- Quotations
- and 2 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Kylas Key Features
- Lead management with customizable lead pipelines
- Contact Management
- Company Management
- Deals Management
- Pipeline Management
- Quotations
- Products/Services catalog
- Mobile App
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 Kylas
- Lead management with customizable lead pipelines
- Contact Management
- Company Management
- Deals Management
- Pipeline Management
- Quotations
- Products/Services catalog
- Mobile App
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Kylas Integrations
Kylas connects with: Aircall, Apollo.io, Call Hippo, CallerDesk, 99 Acres, Authkey, Arka, Big V Telecom.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Integrations listed only by Kylas: Aircall, Apollo.io, Call Hippo, CallerDesk, 99 Acres, Authkey, Arka, Big V Telecom.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Use Case Recommendations
Best Fit for Kylas
- Budget-conscious teams looking for an affordable CRM platform
- 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 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 | Kylas | TheirStack |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 8 |
| Integrations | 8 | 5 |
| Founded | N/A | 2021 |
Getting Started Checklist
- Define your customer relationship management and sales pipeline tracking and B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected contacts and deals 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
Kylas serves the customer relationship management and sales pipeline tracking side of an outbound stack and TheirStack the B2B lead data and contact enrichment side. Kylas 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 Kylas and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Kylas and TheirStack?
- Kylas is a CRM platform built for customer relationship management and sales pipeline tracking, covering lead, contact, company and deal management. TheirStack is a data enrichment tool focused on B2B lead data and contact enrichment, including job search, company search and technographics. They serve different parts of the sales workflow.
- Which one is cheaper, Kylas or TheirStack?
- Both platforms start at the same $0/mo price point with free tiers, so neither is cheaper at entry. Beyond the free tier, Kylas's Elevate plan is $175/mo for 100,000 expandable records with unlimited users, while TheirStack's API, Webhooks and MCP plan is $49/mo for 1,500 API credits per month.
- Do Kylas and TheirStack integrate with each other or with the same tools?
- The article does not list any direct integration between Kylas and TheirStack. Kylas integrates with tools like Aircall, Apollo.io, Call Hippo and CallerDesk, while TheirStack integrates with Clay, LinkedIn Audiences, Make, N8N and Zapier, so their integration ecosystems do not overlap in the listed tools.
- Should a sales team use both Kylas and TheirStack together?
- The article notes that many teams run one of each, since Kylas handles organizing contacts, tracking deals and forecasting revenue, while TheirStack handles finding accurate contact data for target accounts. This suggests they can complement each other rather than compete directly.
- How many integrations and features does each tool offer?
- According to the feature comparison summary, Kylas lists 8 total features and 8 integrations, while TheirStack also lists 8 total features but only 5 integrations. Both tools have a starting price of free and a top tier priced as contact sales.
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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