BlockSurvey

BlockSurvey is a survey and form-building platform designed with privacy and data security as core principles. It employs end-to-end encryption so that only the survey owner and respondents can access the data — not even BlockSurvey itself. The platform is built on the Stacks blockchain, anchored to Bitcoin, giving users verifiable ownership of their data. It offers a range of form types including surveys, quizzes, assessments, and polls. Features include AI-assisted survey creation, anonymous response collection, customizable themes, logic branching, and detailed analytics. BlockSurvey is positioned for organizations and individuals who handle sensitive data — such as those in healthcare, research, HR, and nonprofits — and need to comply with privacy regulations like GDPR and HIPAA. The platform supports integrations with third-party tools and offers both free and paid subscription tiers. It emphasizes zero data selling, no ads, and no tracking of respondents, differentiating itself from mainstream survey tools on privacy grounds.