Private surveys.
Verified answers.
Surveys where every response is private. No accounts needed — just share a link and let people answer without worrying about their privacy.
No account required. Free during beta.
How safe do you feel walking at night in your neighborhood?
Verified by zero-knowledge proof. Identities never recorded.
Simple for everyone involved.
Create a survey
Add up to 5 questions, set optional location eligibility, and publish. Share the link with your audience — that's it.
Respond privately
Open the link, confirm your device with biometrics, and answer freely. Your identity is never recorded — your response is verified without revealing who you are.
Get verified results
Every response is cryptographically verified and permanently recorded. You see real results from real people — no one can link a response to a person, not even us.
Not just another survey tool.
Traditional survey tools promise anonymity but can't prove it. umbra.vote uses advanced cryptography to make privacy a mathematical guarantee — not a policy.
Mathematically private
Your responses are anonymous and cryptographically verified. Survey creators see aggregate results only — individual identities are mathematically impossible to recover. Not difficult. Impossible.
Location-verified eligibility
Target surveys to specific countries or nearby locations. Respondents prove they qualify without sharing their exact coordinates — just that they're in the right place.
One device, one response
Device-bound biometric identity ensures each person can only respond once. No duplicate responses, no bots — without requiring sign-ups, email verification, or downloads.
Verified, not trusted
Every response is proven legitimate by cryptographic verification. You don't have to trust us, or anyone — the math guarantees it. Results are permanently recorded and auditable by anyone.
Ready to ask better questions?
Create your first anonymous survey in under a minute. Every response verified, every identity protected.
No account required. Free during beta.