Clerk vs Sensory TrulySecure

Clerk provides full-stack authentication and user management for applications, including Organizations and Billing. Prebuilt components cover sign-up, sign-in, and user profiles, while Frontend, Backend, and Platform HTTP APIs support client-side, backend, and workspace operations. Clerk Billing handles subscription billing and charges 0.7% of billing volume in addition to Stripe fees. Its free B2B offering includes 100 monthly retained organizations per app and up to 20 members per Organization. Listed integrations include Convex, Firebase, Supabase, Shopify, Vercel Marketplace, and Google Analytics. Security practices include account lockout, bot protection, rate limiting, breached-password detection, and MFA enforcement. Clerk lists SOC 2 Type 2 and HIPAA certifications; SOC 2 reports are available on Business and above, while a HIPAA BAA is available on Enterprise. Data is hosted on US infrastructure, with no regional data residency. Clerk is available on Android, iOS, web, APIs, and extensions, and provides an iOS SDK for native Apple apps. Hobby is free; Pro costs $20/mo billed annually, and Business costs $250 per year billed annually.

Sensory TrulySecure combines face recognition and speaker verification for biometric authentication. The recognition runs on-device and can fuse face and voice signals. Its convenience mode accepts face, voice, or a combined score, while TrulySecure mode requires both face and voice to match. Voice recognition supports text-dependent and text-independent use, and face liveness detection is designed to resist spoof attacks. Supported camera types include 2D RGB, infrared, and time-of-flight; Sensory says version 4.0 also supports 3D and infrared cameras for use in low light or darkness. Adaptive enrollment can refine a user profile during normal use, with the aim of reducing false rejections. Sensory also describes moving some authentication processing to the GPU and integrating on-device liveness detection and feature extraction into cloud-based systems. ST lists FIDO UAF certification for Android and iOS. Sensory lists implementations for Android, iOS, Linux, Mac OS, and Windows. Licensing terms and price are provided by Sensory on request; a 2018 SDK announcement listed a $2,500 price including up to five hours of support.