Iterable

Iterable is a modern growth marketing platform designed for enterprise brands to create personalized, cross-channel customer journeys. It emphasizes an API-first architecture, making it highly flexible for tech teams. Features include advanced experimentation (A/B/n testing), deep personalization using real-time data, and robust analytics. It's built for marketing teams at large-scale digital companies that need to coordinate messaging across email, push, SMS, and more within a single workflow.

Its complexity and cost place it firmly in the enterprise category alongside Salesforce.