The problem it solves
Opinions are collected by a group message or a sheet by the door: answers go missing, one person answers twice, and nobody trusts that what they wrote will not be traced back to them. What is needed is one single-use link per person, results that add themselves up, and an anonymous survey that is actually anonymous rather than promised to be.
Who it is for
- Anyone asking customers what they think
- Schools and training centres
- Customer service teams
Available today
One link each, used once
32 random bytes per invite, of which only the SHA-256 is stored, and the link is shown once when it is issued. Five answers from the same link in the same instant: one is recorded and four are told the link has been used.
Anonymous in the schema, not in the code
On an anonymous survey a response does not name its invite, and an invite records that it was used and never when — because a stamp on the invite and a stamp on the answer a moment apart are a name. Three constraints in Postgres refuse anything else, and the flag cannot be flipped once answers are in.
Four kinds of question, fixed when it opens
Single choice, multiple choice, a scale between two bounds, and free text, in one survey. The questions are editable only while it is a draft: opening the survey fixes them, so no question changes under somebody who has already answered it.
Results added up, with no names on them
A count per option, the scale as its sum and its count so the page divides once, and the texts as written. Answers are never grouped by who sent them, because grouping is one step from a fingerprint.
Withdrawing a link, and a ceiling on attempts
A withdrawn link stops working from that instant and looks exactly like one that never existed. Lookups are capped per caller, so the token space cannot be swept by guessing.
Frequently asked questions
Is an anonymous survey really anonymous?
Yes, and it is the database that keeps the promise rather than the code. A response does not name its invite, and an invite records that it was used and never when — because a stamp on the invite and a stamp on the answer a moment apart are a name. Three constraints in Postgres refuse anything else, and flipping the survey’s flag once answers are in is refused too.
Does the person answering need an account?
No. They open their link and see the survey’s questions and the name of the business asking — nothing else: no other survey, no other answer, and nothing about the business but its name. A link is accepted once, and five attempts in the same instant end with one answer.
Does JooDax send the survey links out?
No. Each link is shown once when it is issued and can never be shown again; you send it however you like. If somebody loses theirs, issue a new one and withdraw the old — and a withdrawn link looks exactly like one that never existed.
What do the results show?
A count per option, the scale as its sum and its count, the free texts as written with no name on them, and how many links were issued and how many were used. Answers are never grouped by who sent them.
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