Productivity
Customer Support
Lead Generation
Marketing
API Platforms
Automation
Sales
HubSpot
HubSpot
HubSpot combines CRM, email marketing, automation, AI assistants, customer support, and lead nurturing into a unified platform for businesses of all sizes.
PricingFree + paid
APIAvailable
Open sourceNo
Free CRM available with scalable paid hubs and enterprise plans.
Related platforms
Clay
Clay
AI-driven GTM automation platform for lead enrichment, personalization, and outbound workflows.
APIClosedFree tierPaid plans
Reply.io
Reply
AI-powered sales engagement and multichannel outreach platform with automation, lead generation, and AI SDR capabilities.
APIClosedFree tierPaid plans
GoHighLevel
HighLevel Inc.
All-in-one sales, marketing, and CRM platform built for agencies and professional marketers.
APIClosedPaid onlyPaid plans
Apollo.io
Apollo.io
AI-powered sales intelligence and lead generation platform for prospecting, outreach, and pipeline management.
APIClosedFree tierPaid plans