
Thunderbit is an AI-powered web scraper that lets users extract data from websites, PDFs, and documents in just a few clicks.
With its natural language interface and pre-built templates, it's a practical starting point for small sales or operations teams that need to pull contact lists from directories, maps, or marketplaces.
However, as teams scale their prospecting efforts, they often find that a web scraper alone isn't enough.
Thunderbit's credit limits, its focus on extraction rather than verified sales intelligence, and the absence of built-in sequencing, dialing, and CRM enrichment push many GTM teams to look for more capable platforms.
The alternatives below span a range of use cases: from full-stack sales intelligence and engagement platforms to workflow automation tools and developer-focused data APIs. Each serves different team sizes, technical comfort levels, and go-to-market motions.
If you're evaluating options, the right choice depends on whether you need verified contact data, outbound execution, or a programmable enrichment layer.

Tired of burning hours verifying contact info that goes nowhere? Apollo delivers 240M+ contacts with 98% email accuracy so your reps sell instead of search. Join 600K+ companies building pipeline on autopilot.
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Apollo is an AI sales platform that unifies data, intelligence, and execution into one connected GTM system. Where Thunderbit stops at extraction, Apollo covers the full prospecting workflow: finding and verifying contacts, running multi-channel outreach, routing inbound leads, and enriching CRM records, without stitching together separate tools.
Apollo's database includes 240M+ people and 30M+ companies with 98% email accuracy, continuously validated through Apollo's Living Data Network. Beyond data, Apollo offers multi-channel sequences (email, calls, social), a Power Dialer and Parallel Dialer, AI-generated call scripts and summaries, inbound form enrichment and routing, and waterfall enrichment for CRM records. The AI Research Agent surfaces account insights automatically, while the AI Sequence Builder creates outreach from natural language prompts. Apollo's 65+ filters (source: Apollo Product Page) let teams define precise ICPs and build targeted lists in minutes.
Apollo is built open by design. It meets sellers inside the tools they already use, via the Chrome extension across the web, Salesforce, HubSpot, and 50+ integrations (Apollo Integrations). For technical users, Apollo MCP connects Apollo's data and workflows directly into AI assistants like ChatGPT, Codex, Claude, and Perplexity. The Apollo CLI provides terminal-native access for headless GTM workflows, and the REST API supports bulk enrichment and external system integrations.
Apollo serves B2B GTM teams, GTM Engineers, and AI Builders building headless GTM workflows with the Apollo API, CLI, and MCP, alongside Sales Professionals, SDRs/BDRs, AEs, RevOps, Marketing, and Revenue Leaders.
Pricing (annual billing, via Apollo's pricing page): Free at $0 with 900 credits/year; Basic at $49/user/month with 30,000 credits/year and unlimited sequences; Professional at $79/user/month with 48,000 credits/year, US dialer, and AI research; Organization at $119/user/month (min 3 users) with 72,000 credits/year, international dialer, SSO, and advanced security.
"Apollo became the single source of truth for us, where everything originates from and where all the data returns to.", Kevin Warner, CEO at Leadium
"We reduced the complexity of three tools into one.", Collin Stewart, CEO at Predictable Revenue
According to Ramp's vendor data, Apollo holds a 39% adoption rate in the Sales Data Providers category as of August 2026, up 6 percentage points year-over-year, making it the fastest-growing vendor in the space. Apollo also ties for the highest new-adopter share among first-time buyers in the category, capturing 30% of teams entering the space for the first time.
Zooming out to the full category, Ramp's Sales Data Providers category data shows Apollo as the fastest-growing vendor overall, averaging +0.6 percentage points of adoption growth per month as of August 2026, more than triple the growth rate of any other vendor in the category.
Trusted by teams at Anthropic, Redis, Smartling, Autodesk, Dolby, DocuSign, and 100+ Fortune 500 teams, Apollo earned the 2026 MarTech Breakthrough Award for "Best AI-Powered Sales Solution" and is a G2 Leader across multiple categories with a 4.7/5 G2 rating.

PhantomBuster is an automation tool that enables teams to extract leads from social platforms and web sources, then enrich and sequence those leads through automated workflows.
It offers a library of pre-built "Phantoms", individual automation scripts, that can be chained into multi-step flows covering lead extraction, profile enrichment, and connection outreach across social and professional networks.
PhantomBuster is commonly used by growth teams and agencies that want to automate repetitive prospecting tasks without writing custom code.
Its no-code interface and template library lower the barrier to running automated campaigns at scale.
Pricing: PhantomBuster's pricing is not publicly displayed. Contact their team for current plan details.
See how Apollo compares to PhantomBuster.


Outscraper is a pay-as-you-go data extraction service that pulls structured data from public sources, including Google Maps, search results, reviews, and business directories. It is designed for teams that need to build location-based or category-specific lead lists from publicly available data, particularly useful for local business prospecting and market research.
Outscraper supports a wide range of data types, including business contact information, reviews, ratings, and geographic data. Teams typically use it to build raw lead lists that feed into downstream enrichment or outreach tools.
Pricing: Outscraper's pricing is not publicly displayed. Contact their team directly for current rates.
Considering Outscraper? Here's how Apollo compares.
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Captain Data is a people and company data API built for AI agents and B2B SaaS platforms. According to Captain Data, it provides access to 500M+ profiles with search and enrichment capabilities covering verified emails, work history, company details, and employee lists. The API is production-ready and designed to integrate in hours rather than weeks, making it a practical choice for engineering teams embedding data into AI workflows or internal tools.
Captain Data supports seven endpoint types: people enrichment, company enrichment, people search, company search, person lookup by name and company, company lookup by domain, and employee list generation. Its credit-based pricing scales with volume, with discounts applied as usage increases.
Pricing (from Captain Data's pricing page): Usage-based, starting at €59.99 per 1,000 credits at the base rate. Volume discounts reduce the rate, for example, 20,000 credits at the Silver tier costs €29.99 per 1,000 credits (€600/month). High-volume requested pricing is available. A free trial includes 100 credits.
Apollo vs Captain Data, here's everything you need to know.

TexAu is a GTM automation engine that covers lead generation, data enrichment, lead scoring, and CRM synchronization. It performs waterfall enrichment across 32+ data providers, including Hunter, Snov, Clearbit, and others, to find emails and phone numbers, and includes 200+ ready-to-run automation actions. Teams can manage workflows through a table-based interface, REST API, or MCP server for AI agent integration.
TexAu includes bidirectional CRM sync with HubSpot, Salesforce, Pipedrive, Zoho, and GoHighLevel, along with an AI Column for lead scoring and personalization. Its pay-on-match credit model refunds credits for failed lookups, which reduces waste on incomplete records. For further context on how TexAu compares to full GTM platforms, see this overview of email scraper alternatives.
Pricing (annual billing, from TexAu's pricing page): Solo at $79/month (1 seat, 2,500 credits/month); Starter at $199/month (3 seats, 8,000 credits/month); Teams at $549/month (5 seats, 25,000 credits/month); Enterprise is custom. Monthly billing is also available at higher rates.
Explore the Apollo vs TexAu breakdown.

Clay is a GTM orchestration layer that gives teams access to 200+ data and AI providers in one place, combined with Claygent, Clay's AI agent for researching target companies and contacts. Teams use it to centralize data sources, build waterfall enrichment workflows, and trigger automated GTM plays based on intent signals like job changes, promotions, and web activity.
Clay supports TAM sourcing, lead scoring, CRM enrichment with auto-sync, and personalized outreach triggered by signals. Its pricing separates "actions" (platform execution) from "data credits" (purchased from providers in the marketplace), creating a flexible but layered cost structure. For teams evaluating Clay versus Apollo's approach to data and GTM execution, this Clay vs. Apollo comparison covers key tradeoffs.
Pricing (from Clay's pricing page): Free tier includes 500 actions/month and 100 data credits/month. Launch starts at $54/month (annual) or $60/month (monthly). Growth starts at $185/month (annual) or $205/month (monthly). Enterprise is custom. Actions and data credits are priced separately and scale independently.
Apollo vs Clay, here's everything you need to know.
| Platform | Primary Use Case | Contact Database | Outbound Execution | CRM Enrichment | Starting Price |
|---|---|---|---|---|---|
| Thunderbit | AI web scraping & data extraction | None (extracts from web) | None | Export to Sheets/Airtable/Notion | Free; paid from $9/mo (annual) |
| Apollo | Sales intelligence + GTM execution | 240M+ people, 30M+ companies | Email, calls, social sequences + dialer | Yes, bi-directional Salesforce & HubSpot sync | Free; paid from $49/user/mo (annual) |
| PhantomBuster | Social platform lead automation | None (extracts from social sources) | Automated social outreach via Phantoms | Limited | Not publicly displayed |
| Outscraper | Public data extraction (Google Maps, etc.) | None (extracts public sources) | None | None | Not publicly displayed |
| Captain Data | People & company data API | 500M+ profiles (self-reported) | None (API only) | Via API integration | €59.99/1K credits (base rate) |
| TexAu | GTM automation + waterfall enrichment | None (waterfall across 32+ providers) | CRM sync; no native dialing/sequencing | Yes, bi-directional sync with 5 CRMs | $79/mo (annual, 1 seat) |
| Clay | GTM orchestration + enrichment workflows | 200+ providers via marketplace | Email campaigns via Clay sequencer | Yes, CRM auto-sync on Growth+ | Free; paid from $54/mo (annual) |
The right tool depends on where data extraction fits into your broader GTM motion.
For teams that have outgrown web scraping and need verified data, built-in execution, and a system that scales from individual SDRs to enterprise GTM teams, Apollo is the most complete option. Explore more detail on how Apollo compares to the broader landscape in this Apollo alternatives overview.
Thunderbit is a web scraping tool focused on extracting data from websites, PDFs, and documents. Apollo is an AI sales platform that combines a verified B2B contact database, outbound sequencing, dialing, inbound routing, and CRM enrichment in one connected system.
Teams that outgrow web scraping typically move to Apollo when they need verified contact data and built-in execution rather than raw extraction.
Captain Data is designed specifically for AI agents and B2B SaaS platforms, with a production-ready API covering people and company enrichment. TexAu also offers a REST API and MCP server for AI agent integration.
Apollo's API, CLI, and MCP (as covered above) serve GTM Engineers and AI Builders building headless GTM workflows at scale.
Yes. Apollo's free plan includes 900 credits/year, 2 sequences, and access to basic filters, with no credit card required to start. Paid plans begin as detailed in the Apollo section above.
Clay and Thunderbit address different problems. Thunderbit extracts raw data from web pages and documents.
Clay orchestrates GTM workflows using 200+ data and AI providers, with signal tracking, Claygent AI research, and CRM sync. Clay is better suited for teams building automated enrichment and prospecting workflows rather than one-off data extraction tasks.

Thunderbit serves teams that need fast, no-code data extraction from websites and documents. But for B2B prospecting at scale, extraction alone isn't enough, teams need verified contact data, outbound execution, and CRM enrichment working together.
The six alternatives above cover the full range, from developer-first data APIs like Captain Data to GTM orchestration layers like Clay and TexAu.
Apollo stands out as the most complete option: a single platform that brings together a 240M+ contact database, AI-powered sequencing and dialing, inbound routing, and enrichment, all connected to the tools teams already use. Whether you're an SDR booking meetings, a RevOps leader cleaning pipeline data, or a GTM Engineer building automated workflows with Apollo MCP and CLI, Apollo scales with your needs.
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