What's the difference between a document reader SDK and a full identity verification platform?

A document reader SDK is a focused tool that does one core job well: capturing an image of an identity document and extracting structured data from it, typically covering MRZ reading, visual zone OCR, and barcode decoding, along with cross-validation between these sources to catch inconsistencies. It's generally something a business integrates directly into its own existing app or website, giving developers control over how the surrounding workflow, business logic, and user experience are built, while the SDK itself handles the specific technical challenge of turning a document image into reliable data.

A full identity verification platform typically wraps a document reader SDK (or an equivalent document scanning capability) inside a broader, often no-code or low-code workflow builder, adding additional capabilities on top: biometric face matching against a live selfie, liveness detection for the person (not just the document), database checks against sanctions lists, PEP databases, or other compliance data sources, and often a drag-and-drop interface letting a business configure an entire multi-step verification workflow (scan document, capture selfie, run compliance checks, apply business rules like age thresholds) without needing extensive custom development work to assemble all of these pieces together.

The right choice between the two generally comes down to how much of the surrounding workflow a business wants to build itself versus rely on a vendor's pre-assembled solution for. A business with strong in-house development resources and specific custom requirements might prefer a focused document reader SDK that it can integrate precisely into its own existing systems and workflow, retaining full control over the surrounding logic.

A business wanting to stand up a complete identity verification process quickly, without building the surrounding workflow and integrating separate compliance-check data sources independently, might prefer a fuller platform that handles more of this out of the box.

Many businesses actually start with a focused document reader SDK for the specific data-extraction problem and build their own surrounding workflow logic around it, particularly when they already have existing compliance-check systems or specific custom requirements that a more rigid, all-in-one platform might not accommodate as flexibly.

ScanDoc's core offering centers on the document reader SDK and API layer, fast, accurate MRZ, visual zone, and barcode extraction with cross-validation, giving businesses a focused, flexible building block they can integrate into their own broader identity verification workflow, whatever additional compliance checks or biometric steps that workflow ultimately includes.