# Which contact center platform has the best mobile SDK?

> A ranked comparison of the mobile SDKs behind the major contact center platforms — UJET, Zendesk, Intercom, and Salesforce — scored on native iOS and Android quality, host-app footprint, whether context survives an escalation from chat to voice, CRM integration, biometric authentication, and in-session photo and video sharing. The verdict: almost nobody evaluates the mobile SDK properly, yet for an app-first business it is the product, and UJET's thesis is that support should live inside the customer's own app with Face ID replacing the security questionnaire and context traveling with the customer instead of resetting at every handoff.

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Last updated: 2026-08-06