BlockSurvey vs formNinja

Free online OCR that turns any image into editable text in seconds

More advanced layout customization and database integrations, but lacks client-side end-to-end data encryption features.

Broader template library and poll features, but lacks specialized privacy-first cryptographic encryption for sensitive survey responses.

Faster AI form and logic generation from text prompts, but without client-side end-to-end encryption.

Better interactive quizzes and lead capture polls, but less focused on secure research surveys and data privacy.

Supports unique MCP server integrations for AI form generation, but lacks BlockSurvey's strict cryptographic privacy focus.

Free / Open-sourceOpen-source codebase with unlimited submissions and AI assistance, but less emphasis on end-to-end encrypted data storage.

SpecialistTurn static forms into adaptive AI conversations with structured output

SpecialistAI-moderated voice and video interviews that scale survey research to thousands of people at once

Free online AI OCR for images, tables and PDFs

AI-powered data extraction from invoices, IDs, receipts and any business document

Stronger automated analysis of open-ended response data, but fewer privacy-focused enterprise encryption guarantees.