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.
Your AI survey expert
Design surveys, run conversational interviews, and get clear insights. Every response stays encrypted.
Learn the craft
Guides, templates and playbooks to help you run better research.
End-to-end encrypted, zero-knowledge surveys for sensitive women's health data. Not even we can read your respondents' answers.
Trusted by leading brands for secure, privacy-first surveys
































70%
70% of women share more when they trust their data is private (McKinsey, 2023). Encryption protects sensitive health data by design.
30%
Disclosure rates rose 30% when respondents felt truly anonymous. BlockSurvey's zero-knowledge design makes de-anonymizing respondents technically impossible, even for your team.
3x
3x higher response rates when surveys guarantee anonymity. BlockSurvey's conversational format feels less clinical, reducing drop-off on sensitive topics.



Collect menstrual cycle data, symptom tracking responses, and period health questionnaires at scale. Women are more likely to share accurate cycle data when they trust the platform is private. BlockSurvey's zero-knowledge guarantee removes the barrier — respondents know their data isn't being shared with advertisers or insurers.
Run sensitive surveys on contraception, fertility, pregnancy loss, and reproductive choices — topics where privacy isn't a preference, it's a requirement. Zero-knowledge encryption ensures responses cannot be accessed by third parties, insurers, or even your own team without authorisation.
Collect validated mental health instruments — PHQ-9, GAD-7, Edinburgh Postnatal Depression Scale — in a conversational format that reduces clinical anxiety. Anonymity is guaranteed at the architecture level, so women disclose more honestly on depression, anxiety, and trauma-related questions.
Femtech companies building period trackers, fertility apps, and women's wellness platforms use BlockSurvey to collect user research without compromising the trust their brand is built on. Surveys are end-to-end encrypted — your users' health data never becomes a data asset you didn't consent to create.
NGOs, public health bodies, and healthcare providers running women's health programmes — maternal health, cervical screening, breast cancer awareness — use BlockSurvey to measure programme impact. Sensitive self-reported data is collected anonymously and encrypted throughout.
Collect anonymous feedback on menstrual health policies, menopause support, maternity experience, and workplace wellbeing from women employees. Anonymity guaranteed at the architecture level — so women report honestly without fear that HR can identify their response.
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.
See plan details$99$79/mo
Everything in Standard, plus AI follow-up questions, custom branding, audience management, and custom survey links.
See plan details$149$119/mofor 3 users
Everything in Premium, plus AI data analysis, market research question types, campaigns, and compliance essentials.
See plan detailsLet’s Talk
For organizations that need scale, security, SSO, white-label control, and personalized onboarding.
Talk to salesJoin 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)Big fan of BlockSurvey and what Wilson and the team are doing. BlockSurvey was the end-to-end encrypted product I signed up for and I love the UI, privacy, responsiveness, and transparency behind the platform. Great job all 'round and awesome to see it keep evolving.
James Longley@jameslongleyFew 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.
G2 Crowd
4.8Star Rating
Capterra
4.9Star Rating
Join 500+ companies across 50+ countries who use BlockSurvey to collect sensitive health data with the privacy guarantees women deserve.
We use cookies to enhance your experience, and ensure secure access. By continuing to use our site, you accept our use of cookies.