Attentive Must Tighten Integrations and Orchestration

The real fight is no longer just who sends the best text message, it is who becomes the system a merchant trusts to decide who gets emailed, who gets texted, and when. Attentive already sells personalized SMS and email to ecommerce brands, and it reached an estimated $500M in ARR in 2024, but merchants often still keep another email tool in place. That makes clean integrations, shared consent data, and one campaign calendar central to winning more of the budget.1 3 4

• Klaviyo built its position in ecommerce partly on deep integrations, and the ecosystem has long treated integration quality as a core buying criterion. In practice, merchants want orders, browsing behavior, subscriptions, and support events flowing into one profile so automated sends do not collide across apps.3 5 6
• The friction is easy to picture. A merchant can run SMS in Attentive and email in Klaviyo or another provider, then end up texting a promotion after an email already converted the shopper, or sending to a customer who opted out in one system but not the other. That wastes spend and hurts the customer experience.1 5 7
• This is also a scale issue. Klaviyo was at an estimated $937M ARR in 2024, well ahead of Attentive at $500M, while Postscript was at $100M ARR in 2024 and expanding beyond pure SMS. The category is converging on multi product suites, so orchestration determines who captures the bigger platform revenue pool.3 4

The next step is a tighter bundle where SMS, email, audience data, and send logic act like one product instead of connected apps. If Attentive makes that bundle feel simpler than keeping separate tools, it can move from being an SMS line item to becoming a larger share of the merchant’s core marketing stack.1 3 5