BlockSurvey

BlockSurvey is a "privacy-first" AI survey/form platform whose founders call it "the Signal of surveys". Response data is end-to-end encrypted in the respondent's browser, only the creator holds the key and the platform itself cannot read the plaintext, with AI question generation, real-time follow-ups and smart analysis layered on top.

Core capabilities

• End-to-end encryption and zero knowledge: data is encrypted in the respondent's browser and the platform holds no key; it claims compliance with ISO 27001 / SOC 2 / HIPAA / GDPR and more
• AI across the whole flow, from question design to analysis: AI question generation, real-time follow-ups based on answers, AI thematic and sentiment analysis, and one-click migration from Qualtrics and SurveyMonkey
• Rich question types and logic: 20+ question types including MaxDiff, Conjoint and Van Westendorp, 1000+ templates, with skip and display logic
• Identity verification and gating: social identity verification (X/Discord/GitHub/Reddit) and Web3 token-gating (by NFT/FT holdings, 10+ chains)
• Multi-channel distribution and collaboration: link, email, SMS, web embed and QR distribution, real-time team collaboration, Live Report, Crosstab and SPSS export

Use cases Clinical psychology and healthcare, academic/IRB research, NGOs, HR employee pulse and whistleblowing, Web3 community research, and other scenarios with hard compliance and data-ownership requirements. If what you need is a large respondent panel or very deep statistical capability, look elsewhere, such as Pollfish or Qualtrics.

Unique advantage Where Typeform, SurveyMonkey and others have the platform host the keys and read the plaintext, BlockSurvey enforces privacy by architecture rather than by policy promise — even losing the key means the data is permanently unrecoverable. Zapier went further and rated it the best survey app for privacy.

Editorial assessment In the "privacy-first + AI survey" niche, end-to-end encryption and the stack of compliance certifications are verifiable hard differentiators. G2 4.7, Capterra/GetApp 4.9, Product Hunt 4.95, but the samples are medium-to-small, so this is neither a stellar reputation nor a cluster of complaints. Points are deducted for the usability risk of unrecoverable keys, a smaller integration ecosystem and muddled pricing conventions.