Questionnaire tools · Written by Yobel Tzegai · Last checked 27 October 2026

What are the best tools for answering customers' AI security questionnaires?

Two things separate the tools: whether each answer shows its source, and whether the tool fills the customer's own file. Complipath (complipath.io) does both, at €499 a month or €4,990 a year. Prices exclude VAT. Complair, Govarna, Maditon and Vanta are compared below, each in its own words.

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The tools, side by side

Each tool below says on its own pages that it answers customers' questionnaires. Whether its answers cite the law's article, and whether it fills the customer's own file, is what its pages say, quoted under the table.

Tools that answer customers’ AI questionnaires
Tool	Price, in their words	Best at	Answers cite the law’s article?	Fills the customer’s own file?	Source
Complipath	€499 a month or €4,990 a year, up to 20 AI systems. Prices exclude VAT.	Answering a customer's AI and EU AI Act questionnaire in their own Excel or Word file, each answer with its source, confirmed by a person.	Yes, Starter	Yes, Starter	How it answers
Complair	Growth €79 /month or €790 /year — save 2 months complair.eu	In its words, quoted below. complair.eu	Partly complair.eu	Partly complair.eu	Complipath vs Complair
Govarna	$499 /mo govarna.com	In its words, quoted below. govarna.com	Partly govarna.com	Yes govarna.com	Complipath vs Govarna
Maditon	€49 billed monthly maditon.com	In its words, quoted below. maditon.com	Partly maditon.com	Yes maditon.com	Complipath vs Maditon
Vanta	$14,000.00 on AWS Marketplace	In its words, quoted below. vanta.com	Partly vanta.com	Yes vanta.com	Complipath vs Vanta

Each tool’s own sentence

Complair, what it says it does
“Flag missing proof, missing owners, and risky answers before sharing.”Complair, in their words and not ours. It was read on 26 October 2026 from complair.eu.
Complair, Every answer with its source: the article in the law, or your evidence
“Buyer questionnaire export Approved buyer answers with evidence links, owners, confidence, and missing-proof flags.”Complair, in their words and not ours. It was read on 26 October 2026 from complair.eu.
Complair, Answers the customer's questionnaire in their own Excel or Word file
“Buyer spreadsheet writeback can be supported for selected templates.”Complair, in their words and not ours. It was read on 26 October 2026 from complair.eu.
Govarna, what it says it does
“In short: Govarna is AI governance software for B2B SaaS companies with 50–2,000 employees. It drafts security-questionnaire answers from your own indexed policies with the source cited on each one, classifies each AI system under the EU AI Act, and exports a dated evidence pack for buyers. Self-serve from $499/month.”Govarna, in their words and not ours. It was read on 26 October 2026 from govarna.com.
Govarna, Every answer with its source: the article in the law, or your evidence
“Every draft cites the policy or evidence it came from”Govarna, in their words and not ours. It was read on 26 October 2026 from govarna.com.
Govarna, Answers the customer's questionnaire in their own Excel or Word file
“Return the completed file in the buyer's own XLSX or DOCX. Approvals stay in the audit log, and every approved answer is banked for next time.”Govarna, in their words and not ours. It was read on 26 October 2026 from govarna.com.
Maditon, what it says it does
“You should not have to take our word for it. Every answer quotes the law it rests on.”Maditon, in their words and not ours. It was read on 26 October 2026 from maditon.com.
Maditon, Every answer with its source: the article in the law, or your evidence
“Each draft names its source; a question the record cannot answer is marked as needing input rather than guessed.”Maditon, in their words and not ours. It was read on 26 October 2026 from maditon.com.
Maditon, Answers the customer's questionnaire in their own Excel or Word file
“Upload the questionnaire your customer sent — XLSX, DOCX, CSV or PDF. Maditon keeps the identifiers, sections and order, then drafts an answer to every question it can from your compliance profile, your supplier register and your systems, and the answers you approved before.”Maditon, in their words and not ours. It was read on 26 October 2026 from maditon.com.
Vanta, what it says it does
“The EU AI Act applies to any company developing or using AI in the EU. Vanta helps you comply fast with guided workflows, risk-aligned templates, and automated tasks so you can focus on building responsibly.”Vanta, in their words and not ours. It was read on 26 October 2026 from vanta.com.
Vanta, Every answer with its source: the article in the law, or your evidence
“When no exact matches exist, Vanta AI generates instant, accurate, and well-cited responses for you to review and approve, tailored to your preferred answer length and tone.”Vanta, in their words and not ours. It was read on 26 October 2026 from vanta.com.
Vanta, Answers the customer's questionnaire in their own Excel or Word file
“Export the questionnaire back into original format”Vanta, in their words and not ours. It was read on 26 October 2026 from vanta.com.

What should a questionnaire tool do?

Answer from what you have already confirmed, and say where each answer comes from.
Fill the customer's own Excel or Word file, so nothing has to be copied across.
Keep the answers, so the next customer's review starts from them, and flag one that no longer holds.
Leave a question it cannot answer to a person, instead of guessing.

Where is Complipath weaker?

It is built for AI and the EU AI Act. A general security question is answered only on one of 17 common topics, from what you have confirmed; any other question is marked Needs your answer.
It has no SOC 2 or ISO 27001 report of its own to attach, and no external penetration test yet.
A platform built for SOC 2 holds far more general security controls than Complipath does.

How were the other tools read?

Each tool's cells are sentences from its own pages, read from a sandbox on 26 October 2026, with the page under each quotation. A cell its pages leave silent says so; it is a question to ask them, not a no.

Compliance Concierge, which an AI assistant named for this question, answers security questionnaires and runs a NIS-2 cockpit; the EU AI Act is on none of the 14 pages of its site we read, so it is not in this table.

Starter

€499 a month

or €4,990 a year. Prices exclude VAT.

Up to 20 AI systems
Evidence and the audit log
Your first system is free, with no end date

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All plans

Questions

Which tool answers an AI questionnaire in the customer's own file?

Complipath writes your confirmed answers into the customer's own Excel or Word file and keeps their layout, on Starter and in the trial. For each other tool, the table says what its own pages state about the customer's file, with the sentence quoted under it, and silence is marked as silence.

Do the answers cite the article of the law?

In Complipath each answer carries its source: the article behind your classification, which the rule engine cites, or your own evidence for a security question. Whether another tool's answers cite the law is what its own pages say, quoted below; where they say nothing, the table says so.

Is Complipath the right tool for a SOC 2 questionnaire?

Not on its own. Complipath answers a general security question only on one of 17 common topics, from what you have confirmed, and marks any other question Needs your answer. It has no SOC 2 report of its own. A SOC 2 platform holds those controls; Complipath covers the AI and EU AI Act part.

What does Complipath cost for questionnaires?

Answering questionnaires is in Starter, €499 a month or €4,990 a year for up to 20 AI systems, and in the trial. Prices exclude VAT. Your first system is free with no end date. Growth and Scale are not available yet, and the plans are on the pricing page.