Adapt.io vs SalesStack: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare Adapt.io (data enrichment tool) and SalesStack (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Compare Adapt.io (data enrichment tool) and SalesStack (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reviewed and updated September 4, 2026
Adapt.io vs SalesStack: Data Enrichment Tool vs Sales Engagement Platform Comparison
Adapt.io (data enrichment tool) and SalesStack (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
Adapt.io is a data enrichment tool for B2B lead data and contact enrichment; SalesStack is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, Adapt.io lists 250m+ business contacts and 10m+ company profiles, and SalesStack lists lead scoring and cold email outreach.
Adapt.io offers a lower entry point at $0/mo compared to SalesStack at $1970/mo.
If your priority is finding accurate contact data for target accounts, Adapt.io is the one built for it; for coordinating outreach across email, phone, and social channels, that is SalesStack. Many teams run one of each.
Understanding the Core Difference
Adapt.io is B2B lead intelligence platform with 250M+ contacts, Prospector Chrome extension, and data enrichment with 50+ attributes.
SalesStack is Sales engagement and sales automation platform (formerly SendBuzz) that combines a B2B lead database with 40+ filters, cold email campaigns, AI calling, forms, funnels, calendars and deal management in one sales OS for SMBs.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Free
Grow
Adapt.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 25 Email Credits, 25 Enrichment Credits, 25 Contacts per day | 25 Email Credits |
| Starter | $49/mo | 500 Email Credits, 500 Enrichment Credits, 50 Contacts per day | 500 Email Credits |
| Basic | $99/mo | 1,000 Email Credits, 100 Phone Credits, 1,000 Enrichment Credits | 1,000 Email Credits |
| Custom | Contact Sales | Custom | - |
Source: Adapt.io Pricing
SalesStack Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Grow | $1970/yr | 5 unique mailboxes; 1000 lead search and enrichment credits; unlimited lead search | Not published as a send figure; cloud call center included |
| Ultimate | $4970/yr | 20 unique mailboxes; 3500 lead search and enrichment credits | Not published as a send figure |
| Enterprise | $9970/yr | 100 unique mailboxes; 8000 lead search and enrichment credits | Advanced, AI-powered email warm-up |
Source: SalesStack Pricing
Pricing Analysis
Adapt.io is more affordable at the entry level ($0/mo vs $1970/mo). For teams with tight budgets or those just getting started with B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking, this price difference matters.
Adapt.io offers 4 pricing tiers compared to SalesStack's 3, giving you more granularity as you scale.
Adapt.io includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- 250M+ business contacts
- 10M+ company profiles
- Prospector Chrome extension
- Data enrichment with 50+ attributes
- Lead builder with advanced filters
- ABM list building
- and 4 more listed below
- Lead Scoring
- Cold Email Outreach
- Sales Engagement
- Sales Funnels
- AI Calling
- Custom Forms
- and 4 more listed below
Adapt.io Key Features
- 250M+ business contacts
- 10M+ company profiles
- Prospector Chrome extension
- Data enrichment with 50+ attributes
- Lead builder with advanced filters
- ABM list building
- 3,000+ tech sector classifications
- Saved searches
- CSV export
- API access
SalesStack Key Features
- Lead Scoring
- Cold Email Outreach
- Sales Engagement
- Sales Funnels
- AI Calling
- Custom Forms
- Multi-Channel Outreach
- Calendar
- Calls and Tasks
- Team Management
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 Adapt.io
- 250M+ business contacts
- 10M+ company profiles
- Prospector Chrome extension
- Data enrichment with 50+ attributes
- Lead builder with advanced filters
- ABM list building
- 3,000+ tech sector classifications
- Saved searches
- CSV export
- API access
Listed only by SalesStack
- Lead Scoring
- Cold Email Outreach
- Sales Engagement
- Sales Funnels
- AI Calling
- Custom Forms
- Multi-Channel Outreach
- Calendar
- Calls and Tasks
- Team Management
Integration Ecosystem
Adapt.io Integrations
Adapt.io connects with: Salesforce, HubSpot, Zoho CRM, Marketo, Outreach, Zapier.
SalesStack Integrations
SalesStack connects with: .
Integrations listed only by Adapt.io: Salesforce, HubSpot, Zoho CRM, Marketo, Outreach, Zapier.
Use Case Recommendations
Best Fit for Adapt.io
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (6 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 SalesStack
- Mid-market to enterprise teams with established multi-channel sales outreach and engagement tracking budgets
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
- Revenue teams coordinating email, phone, and social touches
Feature Comparison Summary
| Feature | Adapt.io | SalesStack |
|---|---|---|
| Starting Price | Free | $1970/yr |
| Top Tier Price | Contact Sales | $9970/yr |
| Total Features Listed | 10 | 10 |
| Integrations | 6 | 0 |
| Founded | 2016 | 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
Adapt.io serves the B2B lead data and contact enrichment side of an outbound stack and SalesStack the multi-channel sales outreach and engagement tracking side. Adapt.io offers a more accessible entry point, while SalesStack starts at $1970/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 Adapt.io and SalesStack for current information.
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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