Overview

Attentive and Klaviyo are the two dominant platforms in e-commerce marketing, but they approach the market from opposite directions. Attentive built its reputation as the premier SMS marketing platform before adding email capabilities, while Klaviyo started with email and expanded into SMS. Both now offer multi-channel marketing, but their strengths reflect their origins.

For e-commerce brands choosing between the two, the decision often comes down to which channel drives more revenue for your business and whether you prefer a specialized SMS tool or a unified all-in-one platform.

SMS Marketing Comparison

Attentive's SMS capabilities remain a step ahead of Klaviyo's. The AI Concierge feature enables genuine two-way conversations at scale, where AI handles product questions, sizing help, and order inquiries through text. Attentive also supports RCS messaging, which allows rich media like carousels and interactive buttons within text messages.

Klaviyo's SMS is solid and improving rapidly, with native automation flows that combine email and SMS in the same journey. The advantage of Klaviyo's approach is that SMS and email share the same customer data, making cross-channel coordination seamless. However, for pure SMS sophistication, Attentive leads.

Email Marketing Comparison

Klaviyo has a significant edge in email marketing. Its segmentation engine uses predictive analytics to identify customers at risk of churning, predict next purchase dates, and calculate lifetime value. These capabilities enable highly targeted campaigns that Attentive's email product cannot match.

Attentive's email builder and automation tools are functional but lack the depth of Klaviyo's years of email-focused development. If email is your primary channel, Klaviyo is the stronger choice.

Pricing and Value

Pricing is where these platforms diverge significantly. Klaviyo publishes transparent pricing on its website — $240/month for 10,000 active profiles with email and SMS included. Attentive requires contacting sales, uses contract-based pricing, charges separately for email ($150/month at 10K contacts) and SMS ($0.01 per message plus a $300+ platform fee), and imposes quarterly minimums of $2,000-$3,000.

For brands with high SMS volume, Attentive's per-message model can add up quickly. But Attentive customers often report strong ROI from SMS that justifies the investment. Klaviyo's bundled pricing is easier to budget and better for brands using both channels moderately.

Which Platform Should You Choose?

Choose Attentive if SMS is your primary revenue driver and you want the most advanced messaging tools available. Enterprise retailers with dedicated SMS teams and high message volumes will benefit from Attentive's specialization and white-glove support.

Choose Klaviyo if you want a single platform for email, SMS, push, and analytics with shared customer data. Most mid-market Shopify stores find Klaviyo's unified approach more practical and cost-effective, especially when email remains their dominant channel.