Questions specific to your idea
Move beyond a generic checklist. Get a focused question, three interview prompts, who to ask, and why the answers matter.
AI-assisted validation for founders & builders
Know what to ask.
Before you build.
Turn your idea into the right customer conversations. Get questions tailored to your business, make sense of what you learn, and choose your next test—with AI guidance.
Two ideas free · No payment required
Sign in with your ThoughtfulBuild account. Your progress saves automatically.
THE QUESTION YOU MIGHT HAVE MISSEDExample
Finding parking in Bangalore
Your idea
Help drivers reserve parking before arriving at a restaurant.
A question worth investigating
Can the operator actually hold a space until the driver arrives?
Ask a parking operator
“What happened the last time a driver arrived and the lot was full?”
Use what you learn to test reliable reservations at one location before building an app.
Illustrative example · Your questions adapt to your idea and answers.
See the journey
Watch a better question change the next step.
Follow a Bangalore parking idea from customer questions to an untested operator assumption, a small test, and a downloadable decision brief.
90-second walkthrough · Example founder scenario · Recorded AI responses · Edited for time · On-screen captions
01 · THINK
Ask the right questions.
See who to speak to, what to ask, and what the answers could reveal.
02 · TEST
Find what’s still uncertain.
Separate customer accounts from beliefs. Plan a test around the gap that matters.
03 · DECIDE
Choose your next investment.
Weigh the findings, review the risks, and record what you’ll do next.
Guidance you can act on
Know what to ask.
See what to do next.
A canvas that grows with you
Bring interview notes by typing or voice. AI captures the learning in editable notes and adapts the next questions to what you’ve shared.
A smaller, clearer test
Spot an untested belief or another explanation. Choose a small experiment with a time limit, spending limit, and stopping signal.
A decision you can explain
Review a suggested next step, risks, and improvements. Make your own decision and download the rationale as a PDF.
AI helps you think it through.
You make the decision.
You make the decision.
DecideBuild works with the information you provide. Customer accounts remain reported evidence, and unanswered questions stay visible. You can skip, correct, and return at your own pace.
Before you start
A few useful answers.
Built for founders and small teams exploring a new product or service.
Can I start with just an idea?
Yes. Describe the idea, who it might help, or a problem you’ve noticed. DecideBuild uses that context to prepare your first question. You don’t need a business plan.
What if I don’t have the answers yet?
Skip for now. Use the supporting questions in customer conversations, then return with your findings. Your progress saves to your account.
What is included in the free beta?
Two ideas per account, AI-assisted conversations, voice input in supported browsers, customer questions, an editable canvas, experiment planning, decision suggestions, and PDF export. No payment is required.
Does it research competitors and markets for me?
Not yet. The current beta uses information you provide. Sourced competitor and market research, interview-note analysis, SWOT, business planning, and expanded business and technical feasibility reports are planned for the two-idea beta. They are not available in the product today.
Will it tell me whether my idea will succeed?
It helps you assess what the available evidence supports and what still needs testing. Suggestions to build, pivot, pause, or stop include a rationale. They are guidance, not a guarantee of success.
Two ideas. Room to learn.
Your idea deserves
better questions.
Find my next question Two ideas free · No payment required · Sign in with ThoughtfulBuild