beehiiv publishes, grows and monetizes newsletters with a website builder, for journalists, publishers, writers, founders and small businesses.
Free plan · Paid from $49/mo (billed annually) · Free trial
Klaviyo
Klaviyo combines customer data with email, SMS, RCS, WhatsApp and mobile push marketing, for enterprise brands and small businesses.
- Free plan
- API · Plugin or MCP
- Verified 17 Oct 2026
What Klaviyo does
Klaviyo is an AI marketing platform and customer relationship tool that brings customer data together and sends campaigns by email, SMS, RCS, WhatsApp and mobile push. Its Composer agent can audit flows, segments and forms and build campaigns from one prompt, and a customer service agent answers questions around the clock. It offers more than 350 prebuilt integrations and a Free plan with self-serve signup.
Built for
- Enterprise brands
- Small businesses and startups
Key features
- AI marketing agent (Composer) that audits flows, segments and forms and creates campaigns from one prompt
- 24/7 customer service agent that resolves questions autonomously
- Email, SMS, RCS, WhatsApp and mobile push marketing in one customer profile
- Customer data platform unifying behavioural, transactional and engagement data in real time
- 350+ pre-built integrations
Pros and cons
Pros
- The Free plan costs nothing and supports self-serve signup, with up to 250 active profiles, 500 email sends a month, $5 of mobile messages a month and $5 of Composer usage a month.
- Email, SMS, RCS, WhatsApp and mobile push marketing all work from one customer profile.
- It has more than 350 prebuilt integrations.
- It can be accessed through an API and through a plugin or MCP.
Cons
- The Free plan caps active profiles at 250, email sends at 500 a month, and mobile messages and Composer usage at $5 each a month.
Where Klaviyo is listed
Klaviyo is listed under AI email marketing tools in AI marketing tools.
Customer support chatbots
Klaviyo alternatives
Compare all 5
MailerLite runs email marketing, automations, landing pages and signup forms for creators and businesses, with a free plan and a freemium model.
Free plan · Paid plans: see official pricing · 14-day free trial
Brevo sends email and SMS campaigns, runs automations, and manages customer records, for small businesses and solopreneurs.
Free plan · Paid plans: see official pricing
Mailchimp: email and SMS marketing with AI-assisted content and automation for retail, professional services, non-profit, hospitality and digital product businesses.
Free plan · Paid plans: see official pricing
GetResponse provides email marketing, automation, landing pages, and SMS tools for entrepreneurs, ecommerce stores, and global brands.
Paid from $15.58/mo (billed annually) · 14-day free trial