Have in-depth conversations with 100 people in 1 week

The scale and speed of forms, with the depth of human conversations.

Backed byGoogle for StartupsMicrosoft for StartupsElevenLabs Grants
iFood
Hering
Sensedia
iFood Benefícios
Brivia
VR
Sky+
iFood Pago
Expertise
Fretadão

Your 24/7 research team

Run qualitative research at scale, using AI end-to-end in the process. The final decision is still yours, at every step.

Script assistant

Hi! I'll build the script with you. How would you like to start?

How do you want to start?

‹ ›
1
Start from scratch
2
Upload a context file
3
Use a template
Another answer...Skip

Script creation

Describe your research goal and an AI assistant builds the script with you — from scratch, from a context file, or from a template.

Interview moderation

Interview moderation

Research-specialized AI agents conduct voice interviews with your users and collaborators.

Analysis assistant

What themes came up most in the interviews?

Using Transcripts · Audio

Analyzing interviews
Finding common patterns
Generating answer
Ask about the results...

Results analysis

Insights extracted and synthesized in real time. You audit and make decisions 10x faster. Chat in natural language with the results.

Solutions

Product, Marketing and HR use Grunn to research in depth and at scale — without a scheduling bottleneck.

Continuous discovery, validation and testing with real users.

Churn analysis

Concept testing

Problem discovery

Product and feature launches

Usability testing

Overview of results in the Grunn dashboard

Whoever uses it decides better

The experience was very positive. We found a new way to get data faster and deeper — with real depth on the themes we cared about.

Thais Faiolo
Thais Faiolo
Market Intelligence · iFood

We managed to cover a huge number of people very quickly, in four days. If we had interviewed them ourselves, it would never have been possible. With a form, adoption would probably have been lower. It was absolutely worth it.

Maria Rita Kaysel
Maria Rita Kaysel
HR Business Partner · Sensedia

A qualitative study here normally runs with 6 to 8 people. With Grunn we scaled that number exponentially — we reached around 40 responses. I had never done that in my life.

Daniel Sales
Daniel Sales
Senior Design Manager · iFood Pago

Instead of a rigid script, the conversation flows naturally and warmly, adapting the questions to each employee — it prompts deeper reflection and more authentic answers than traditional surveys.

Janaina Cassetari
Janaina Cassetari
Head of HR · Fretadão

It was an 8-to-10-minute survey with real depth. I feel totally comfortable using it again — I'm actually excited for the next one.

Julio Gonçalves
Julio Gonçalves
Market Intelligence · iFood

We got a speed of responses I don't think we could ever have reached with a form. It turned out great. I would use it again.

Verônica Macêdo
Verônica Macêdo
HR Business Partner Specialist · Sensedia

We had never run a qualitative study interviewing 37 people at once. It brings a lot of insight.

Marina Braga
Marina Braga
Senior Product Designer · iFood Pago

Team adoption was excellent, and the voice format was the highlight: without the barrier of formal writing, the conversation flows far more naturally and engaged.

Flávia Sousa
Flávia Sousa
HR Coordinator · Fretadão

Most people really liked it — they found it different, really nice to talk to. It's more fluid than writing, which can feel a bit stiff. The experience was very positive, and I would use it again.

Thais Vasconcelos
Thais Vasconcelos
Career & Compensation · Sensedia

I saw a company with dedicated founders, eager to learn and very agile in every exchange. Long live Grunn, and thank you for the partnership!

Ana Godoi
Ana Godoi
Director of Product and Digital · Fretadão

The AI conducts the interaction with empathy, makes connections with what the person just shared and creates a sense of genuine listening. That care in the way it was conducted made a difference in the employees' experience — they reported feeling at ease to talk and to go deeper into their perceptions.

Patricia Reed
Patricia Reed
Chief of Human Capital Officer · Brivia

Scale or depth? Both.

Traditional interviews achieve depth; forms achieve scale. Grunn was built to deliver both at the same time.

GrunnTraditional interviewForm
DepthDynamic follow-ups based on what the person said — gets to the whyHigh, moderator-dependentShallow — fixed answers to fixed questions
ScaleHundreds of interviews in daysAbout 10 people a month across the full processHigh, but without depth
Time to resultsReal time — results right after each conversationWeeks, across recruiting, conducting and analysisFast, but shallow
EvidenceEvery conclusion linked to the source verbatim and audioDepends on manual recording and note-takingA number, without the context behind it
CostPer completed interview — a fraction of the traditional costHigh: recruiting, moderator and analystLow

Enterprise-grade compliance

Privacy

LGPD compliant

AI models don't train on your data

Deletion on request

Infrastructure

Microsoft Azure

Data hosted in Brazil

99.9% uptime SLA

Inherits ISO 27001 and SOC 2 from Azure

Identity and access

Single Sign-On (SSO)

Role-based access control (RBAC)

Row-level security

PKCE + encryption, CSRF protection

Traceability

Activity logs

History of every action

Interview export

Periodic external security audits

Featured cases

Frequently asked questions

Does the AI reach the same depth as a human researcher?

Yes — because it doesn't read a fixed script. Grunn's AI asks follow-ups based on what the person just said: it asks for examples, probes contradictions, pulls the why. The script works as a guide of objectives, and the moderation was designed with qualitative research technique — it is not a generic chatbot.

How does Grunn guarantee the AI doesn't make up conclusions?

Every insight in the report is traceable to the literal excerpt of the interview that originated it — you can click and listen to or read the source. Anything without grounding in what the respondent said does not enter the output. The methodology was built with a trained researcher, separating what was said from what is interpreted.

Is the research anonymous? What about data protection?

Yes. There is explicit consent on entry and a recording opt-in, and results can be delivered aggregated and de-identified. The LGPD framework covers consent, security and data hosted in Brazil.

Doesn't the AI voice sound robotic?

The interview is by voice and in real time, with natural turn-taking. The AI adapts its pace to people who say little, welcomes and redirects those who go off-topic, rephrases questions in context when misunderstood and moves on when a topic has been covered.

How much does it cost?

The model is per completed interview: you pay for the finished conversation, not per seat or license. Compared to traditional qualitative research — recruiting, moderator and analyst — the cost per interview is a fraction. For high volume, there are tiered packages.

What is the response rate?

Being asynchronous and voice-based, the barrier to participate is low: people answer whenever they want, by speaking. The rate depends mostly on how the invitation is distributed — channel, approach and timing — and, in validated cases, it came out above traditional surveys.

What is the ideal interview length?

Focused interviews, usually under 15 minutes, with few objectives per round. Because the AI probes dynamically, a few well-moderated questions yield more than a long questionnaire. For time-poor audiences, short recurring pulses work better than a single long interview.

How long does it take to get started?

A matter of days: building a script and going to field takes up to about a week, and the learning curve is fast. Distribution is via a shareable link — carrying your company brand — and, for continuous enterprise volume, there is an API integration path.

3k+
interviews conducted
90%
of interviewees approve the experience
months → days
reduction in time to decision

Aggregate metrics from research run on the platform · data as of July 2026

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Run hundreds of voice interviews in days. The first 25 are free.