Intercom and Zendesk are both customer messaging and support platforms. Intercom is known for a modern, chat-first experience with strong in-app messaging and onboarding features. Zendesk is known for a mature, ticket-first support suite built for structured, high-volume support operations. Neither is objectively "better." The right pick depends on what you're optimizing for.
Choose Intercom if you want a modern chat-led support and onboarding experience. Choose Zendesk if you run high-volume, ticket-based support and need mature support-ops tooling.