Klaviyo
The autonomous B2C CRM — unify customer data and run AI-powered email, SMS, and service across channels.

Unified B2C customer data platform with real-time profiles
Email, SMS, RCS, WhatsApp, and mobile push marketing
AI agents for campaign building and customer service
Segmentation, automated flows, and predictive analytics
350+ integrations with deep Shopify and commerce support
- Abandoned-cart, welcome, and win-back automation for stores
- Segmented email and SMS campaigns from unified data
- AI-assisted support and sales conversations
- Benchmarking performance against industry peers
- 1Connect your store (Shopify, WooCommerce, etc.)
- 2Let Klaviyo unify customer and order data into profiles
- 3Build segments and automated flows across email and SMS
- 4Use AI agents and analytics to optimize campaigns
Is Klaviyo free?
Yes, within limits. The free plan covers up to 250 active profiles and 500 email sends per month, plus 150 monthly mobile message credits. Paid plans scale by active profiles and channels used.
What is Klaviyo best known for?
Klaviyo is known for e-commerce marketing — its real-time customer data and deep Shopify/commerce integrations power behavioral email and SMS flows that drive store revenue.
Which channels does Klaviyo support?
Klaviyo supports email, SMS, RCS, WhatsApp, and mobile push, all driven from a unified customer data platform with AI agents for marketing and service.
Looking for Klaviyo alternatives?
Compare 4 hand-picked alternatives by pricing, free plans, and open-source availability.
Compare Klaviyo side by side
In-depth, editor-written comparisons with a clear verdict.
Related Tools
More active tools in Email Marketing.
Sender
Email marketing that sells without the hassle — email and SMS with a generous free plan.
AWeber
Connect, automate, and sell your vision — veteran small-business email marketing with a free plan.
Emma
Email marketing built for your ecosystem — email, SMS, and automation with brand governance, by Marigold.
Substack
The home for independent voices — publish a newsletter, podcast, or community and get paid by subscribers.