Case Study: Klar achieves 14% more first-time transactions and 12% higher collection success with Customer.io

Klar - Customer Case Study

Klar, a fast-growing fintech in Mexico, faced the challenge of scaling personalized customer communications to drive first-time transactions and improve payment collections. To tackle this, Klar partnered with Customer.io and adopted its messaging platform to orchestrate multi-channel campaigns while integrating data across their tech stack.

Using Customer.io, Klar implemented a single workflow that sent millions of emails, push notifications, in-app webhooks and SMS each month, and ran hundreds of A/B and incrementality tests to refine messaging. The result was a 14% increase in first-time transactions and up to a 12% lift in successful collections (with payment conversion improvements of 8–12%), demonstrating measurable impact from Customer.io’s testing and integration capabilities.

Klar

Diego Schocher

Business Architect