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Klaviyo vs Twilio

Offers SMS, voice and email APIs but does not include a unified B2C CRM or AI marketing agents.

Short answer: Pick Klaviyo if you want AI-powered omnichannel marketing; pick Twilio if you want multi-channel communication APIs. Klaviyo has a free plan, paid from $1/month; Twilio has a free plan.

Which to pick

Pick Klaviyo if you want…

  • AI-powered omnichannel marketing
  • Integrations with Shopify, Payment providers or CRMs (on Klaviyo's list, not Twilio's)

Pick Twilio if you want…

  • Multi-channel communication APIs
  • Integrations with Python, C# or PHP (on Twilio's list, not Klaviyo's)

Side by side

What it is
Klaviyo:Klaviyo is an autonomous B2C CRM that unifies customer data and AI agents to automate email, SMS, WhatsApp, push and more.
Twilio:Twilio provides APIs for SMS, voice, email, chat, and verification to build multi-channel customer communications.
Best for
Klaviyo:AI-powered omnichannel marketing
Twilio:Multi-channel communication APIs
Who it’s for
Klaviyo:E-commerce brands and marketers who need omnichannel automation and AI-driven personalization.
Twilio:Developers building messaging, voice, email, and authentication features.
Pricing
Klaviyo:Freemium
Twilio:Freemium
Starting price
Klaviyo:$1/month (Marketing)
Twilio:—
Free plan or trial
Klaviyo:Free plan (Free)
Twilio:Free trial
Plans
Klaviyo:Free $0 · Email $20 per month · Marketing $1 per month
Twilio:—
Works with
Klaviyo:Shopify, Payment providers, CRMs, Analytics tools, ChatGPT, Claude, Klaviyo MCP
Twilio:Python, C#, PHP, Ruby, Java, JavaScript, cURL

Klaviyo features

  • Composer AI Agent. Analyzes flows, recommends and executes campaign improvements with human approval.
  • Customer Agent. 24/7 AI-driven support that answers questions, processes returns and upsells across chat, SMS, email and WhatsApp.
  • Klaviyo Data Platform. Unifies behavioral, transactional and engagement data into real-time customer profiles.
  • Personalization Engine. Decides who, what and when to send each message in real time, with guardrails and testing.
  • Pre-built Integrations. 400+ native connectors to ecommerce, payment, analytics and messaging platforms.
  • Compliance & Security. GDPR, CCPA tools and SOC 2 Type II audited controls for data protection.

Twilio features

  • Messaging APIs. Send and receive SMS, RCS, WhatsApp, MMS and chat across a global network.
  • Voice APIs. Embed inbound and outbound calling, SIP trunking, and voice AI into apps.
  • Email APIs. Deliver transactional and marketing email at scale via SendGrid.
  • Conversation Memory. Persist and recall customer interaction context across channels.
  • Verification Services. Validate phone numbers and perform user identity checks to prevent fraud.
  • Serverless Builder Tools. Create flows with Studio, Functions, and Assets using pay-as-you-go pricing.

Klaviyo vs Twilio FAQ

What is the difference between Klaviyo and Twilio?+

Twilio: Offers SMS, voice and email APIs but does not include a unified B2C CRM or AI marketing agents.

Should I use Klaviyo or Twilio?+

Pick Klaviyo if you want AI-powered omnichannel marketing or integrations with Shopify, Payment providers or CRMs (on Klaviyo's list, not Twilio's). Pick Twilio if you want multi-channel communication APIs or integrations with Python, C# or PHP (on Twilio's list, not Klaviyo's).

Is Klaviyo or Twilio free?+

Klaviyo has a free plan; paid plans start at $1/month (Marketing). Twilio has a free plan and paid plans.

Do Klaviyo and Twilio integrate with the same tools?+

Their integration lists don't overlap: Klaviyo lists Shopify, Payment providers, CRMs, Analytics tools and 3 more; Twilio lists Python, C#, PHP, Ruby and 3 more.

On DevHunt

Based on each tool's website and DevHunt data. Details may change; check the official sites.