Join Leading Brands across 50+ countries
Using BlockSurvey to protect their respondents' privacy, increase their survey completion rates, get better community feedback, and build better organizations.
BlockSurvey's AI-powered conversational surveys are built for digital health — one question at a time, adapting to each response, on any device. HIPAA compliant, end-to-end encrypted, and zero-knowledge. Collect the health data your product needs without the drop-off rates that kill traditional forms.
Trusted by leading brands for secure, privacy-first surveys
















57% of patients abandon long digital health forms before completion. Conversational surveys reduce drop-off by presenting one question at a time. BlockSurvey's AI adaptive questioning follows each response, surfacing relevant follow-ups, skipping irrelevant ones, and creating a personalized health data collection experience that feels like a guided conversation — not a form.
Digital health products collect the most sensitive data that exists — symptoms, diagnoses, mental health, reproductive health, medication use. BlockSurvey's zero-knowledge architecture means this data is encrypted on the user's device and decrypted only by your organization. No vendor access. No third-party exposure. Compliant by architecture, not just policy.
In-app, via email, via SMS, embedded in your product — BlockSurvey surveys work across every digital health touchpoint. Mobile-first design, 100+ language support. Every response is encrypted from submission to analysis.




Replace clunky onboarding forms with AI conversational health intake surveys. New users share symptoms, health history, and lifestyle factors in a flow that feels like talking to a health professional — not filling out paperwork. Higher completion means more complete health profiles from day one.
Send patients a pre-consultation health assessment before their telehealth appointment. AI adaptive questioning collects symptoms, medication history, and mental health indicators — adapting based on each patient's responses. Clinicians arrive at the consultation with a complete picture. Appointments become more efficient and more effective.
Embed BlockSurvey health surveys directly into your product — as post-session check-ins, symptom trackers, or progress assessments. End-to-end encryption means user health data collected within your product never exists in plaintext outside their device. Your product's privacy promise and your data architecture finally match.
Deploy drip survey campaigns that check in with patients at regular intervals — daily symptom logs, weekly mood tracking, monthly chronic condition assessments. Each response is encrypted, tagged to the patient's timeline, and analysed for trends. Longitudinal health data collection without clinical visits.
Deliver PHQ-9, GAD-7, and other validated mental health instruments in a conversational format that reduces the clinical anxiety traditional assessment forms create. Zero-knowledge anonymity means users disclose more accurately — because they know no one can trace their response back to them.
Track patient adherence, side effects, and treatment outcomes through regular encrypted surveys built into your digital therapeutic. AI adaptive questioning surfaces issues early — if a patient reports side effects, the survey adapts to gather more detail before the next clinical review. Early signals. Better outcomes.
Start free. Upgrade when your research outgrows it. Every plan keeps end-to-end encryption and full data ownership.
$49$39/mo
Unlimited surveys with AI-powered creation, end-to-end encryption, and core privacy protections.
$99$79/mo
Everything in Standard, plus AI follow-up questions, custom branding, audience management, and custom survey links.
$149$119/mofor 3 users
Everything in Premium, plus AI data analysis, market research question types, campaigns, and compliance essentials.
Let’s Talk
For organizations that need scale, security, SSO, white-label control, and personalized onboarding.
Join 500+ happy customers worldwide who are already using our amazing product.
This platform goes far beyond basic surveys. I’ve used it for lead generation, landing page enrichment, and even embedded videos. Everything’s easy to use, well documented, and super flexible—whether you're building forms, quizzes, or something more advanced.
Martin G.Créateur de la Méthode RashōmonI think BlockSurvey is good for short and long surveys. What I find the best is the fact that there are so many templates I can use and customize.
Ankit M.AI Analyst Team LeadUses end-to-end encryption technology that allows users to create survey forms where data is secure and private. UI looks very beautiful.
Lou F.Creative VisionaryFrom end-to-end encryption-level security and AI-generated questions to powerful logic flows and white-label domains, BlockSurvey has it all. It’s secure, innovative, and packed with features like calculations, templates, and in-app analytics. I use it to create personalized assessments for leadership training—nothing else compares.
Kim B.Founder/ President - International Leadership TrainerBlockSurvey puts privacy and security above anything else. The use of end-to-end encryption is not a gimmick as in many products; it's a core feature enabling privacy and security. The survey building tools are impeccable. I've used numerous SaaS survey tools, and nothing comes close.
Trevor L.Chief Information Security Officer (CISO)BlockSurvey is very user-friendly with amazing customization options. It makes capturing data simple and secure. While the Web3 space still has room to mature, the platform itself is smooth and intuitive.
Ali S.Founder, Small- BusinessFew tools combine data confidentiality and form aesthetics like this one. The conversational design improved my response rate by 43%, and the webhook integrations made syncing to our CRM effortless. I also love how responsive and community-driven the support team is.
Kris R.Group Automation ManagerCreating surveys with BlockSurvey has been a breeze. The drag-and-drop interface is intuitive, and we’re able to collect data anonymously and securely—without intermediaries. It’s interactive, friendly, and encourages high participation while protecting user privacy. The reports are solid, and we’ve used it confidently for internal and external feedback.
Liz D.IT Support SpecialistFor our NGO, data privacy is everything—and this platform nails it. It keeps personal info fully protected while letting us design beautiful, chat-like surveys that increase engagement. Team collaboration features sealed the deal.
Luis Noel D.Director ComercialUsing BlockSurvey to protect their respondents' privacy, increase their survey completion rates, get better community feedback, and build better organizations.
Security isn't an afterthought for us; it's a cornerstone. BlockSurvey meets and exceeds industry-leading standards, including ISO 27001, SOC2, FERPA, HIPAA and GDPR, to keep your data safe.



Join 500+ companies across 50+ countries who use BlockSurvey to collect sensitive health data — securely, conversationally, and at scale.