Customer time eats build time
Every hour on a call is an hour not shipping. At pre-PMF stage, both matter, and one always wins, usually the wrong one.
Stay close to customers. Without burning hours on calls.
Diaform was built by a founder for founders. Discovery, MVP feedback, churn, PMF: keep your finger on the pulse of every user with an AI that runs the conversation while you ship the product.
14-day free trial · No demo required
You know you should be talking to users. There just isn't time.
Every founder hears the same advice: talk to your users. The advice is right. The problem is the math. A 30-minute call is actually two hours by the time you've scheduled, prepped, taken notes, and written it up. Do that ten times and a week is gone. Most weeks, sales calls and bug fires win, and customer conversations slip, even though you know they're the highest-impact thing you could be doing.
Diaform solves the time problem. Send one link to ten users (or a hundred) and the AI runs the interview for you, voice or text, in their language, with real follow-ups. You read summaries instead of sitting on Zoom. The product was built to scratch this exact itch, which is why it's tuned for the questions founders actually need answered: is this a real problem, is the wedge sharp, why did they cancel, what would make them pay more.
The founder time trap
Zoom fatigue is real
By call number five, you're not listening as well. The 80th time you ask 'walk me through how you currently do this' is not as sharp as the first.
You hear from the loudest, not the truest
The customers who reply to your DMs aren't always the ones whose feedback should drive the roadmap. You need a way to hear from the quiet ones too.
Why founders pick Diaform
Built by a founder
Tuned for early-stage workflows: small lists, fast iteration, pricing experiments, and the kind of raw discovery interviews YC drills you on.
From idea to running study in 15 minutes
Write the questions you'd ask on a call. Add product context. Share the link. No setup, no scripting, no integrations required.
Voice answers, emotional and candid
Voice typically pulls 2-3× longer answers. For early-stage discovery that's where the gold lives: the half-finished sentence that reveals the real problem.
Mid-interview automations
Have the AI ping your phone when a hot prospect raises their hand, capture an email for follow-up, or offer to book a call.
30+ languages out of the box
If your users are global, the AI talks to them in their language and summarizes back to English. No translators, no awkward English-only forms.
Cheap to start
14-day free trial $89/month after that. Less than the cost of one freelance UX hour, and it does the work of a dozen.
What founders run on Diaform
Early customer discovery
Validate whether the problem is real, urgent, and worth paying for, without scheduling 20 calls.
MVP feedback
Send the link to your first 50 users. Find out what they actually used, what confused them, and what they wish existed.
Founder-led sales discovery
Run a structured discovery conversation before a sales call, so you walk in with the real pain mapped.
Churn deep-dive
When someone cancels, the AI runs the exit interview you don't have time to do. Patterns emerge fast at low N.
PMF measurement
Run the "how disappointed would you be if you could no longer use this" survey with proper follow-up on the why.
Pricing reactions
Test pricing tiers and packaging before you change the page. Get the wince and the willingness in the same conversation.
Frequently asked questions
Q
I'm pre-PMF, do I need this yet?
Especially then. Pre-PMF is when every customer conversation matters most and you have the least time to do them. Diaform exists so you don't have to choose between shipping and listening.
Q
Won't users feel weird talking to an AI?
Some prefer it. The AI is patient, doesn't interrupt, and people are often more candid, especially about cancel reasons or pricing pushback, than they would be with a human founder on the line. Voice + adaptive follow-ups make it feel closer to an interview than a chatbot.
Q
Can I still do live calls when it matters?
Yes, that's the point. Diaform clears the volume so the live calls you do take are the ones that genuinely need a human (closing a strategic account, deep co-design with a design partner). Configure the AI to flag those candidates for you.
Q
How is this different from a Typeform with AI?
Typeform-with-AI rewords the question. Diaform actually asks follow-ups based on the answer, like a trained interviewer would. The depth difference shows up immediately in your transcripts.
Q
What's the smallest sample that's useful?
Five conversations beats five Zoom calls because they happen in parallel and synthesis is automatic. Most founders run their first study with 10-30 users and feel they got more signal than the previous month of calls.
Q
Does it integrate with Slack?
Yes. Pipe completed conversations or hot signals straight into a Slack channel. Most founders watch the channel like a feed instead of a research tool.
Explore more
Dive into the other ways Diaform can power your research.
Ready to upgrade your feedback loop?
Stop guessing why users leave. Start an automated interviewer in seconds and get the deep insights of a Zoom call at the scale of a survey.
14-day free trial · No demo required