Klaviyo
By Klaviyo
Email and SMS marketing platform built specifically for e-commerce — AI predicts churn, lifetime value, and the best content for each segment.
Best for
- e-commerce email & SMS
- predictive customer analytics
- Shopify-integrated marketing
- flow automation
Other Sales & marketing
Apollo
Sales intelligence and outreach platform with AI-assisted email drafting and conversation insights.
Clay
GTM data enrichment platform that combines 100+ data sources with AI to build highly targeted lead lists.
Cal.com AI
AI scheduling layer on top of Cal.com that books meetings via natural-language email and SMS conversations.
HubSpot
All-in-one CRM covering sales, marketing, service, and CMS, with AI features (Breeze) for content generation, prospecting, and customer agents.
Calendly
Industry-standard scheduling automation that eliminates back-and-forth with customizable booking pages, round-robin routing, and calendar integrations.
Intercom
Customer messaging platform with live chat, help desk, product tours, and Fin — an AI agent that resolves a large share of support tickets autonomously.
Zendesk
Enterprise customer service platform with omnichannel ticketing, knowledge base, and AI agents for automated responses.
Outreach
Enterprise sales engagement platform built around outbound sequences and AI-driven prospecting, deal forecasting, and conversation intelligence (Kaia).