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Choose case study
Select the case study interview type. Optionally add your target company so cases match that firm’s style.
Case study interview practice
Work through consulting-style business problems with an adaptive AI interviewer that listens and challenges your assumptions. It scores your framework application, analytical rigour, communication clarity, and recommendation quality, all by voice in your browser. No install or scheduling required.
Practise case study interviews with real-time AI feedback
McKinsey, BCG, Bain, and a growing number of tech companies use case interviews to test structured thinking under pressure. The difference between a scattered answer and a compelling one usually comes down to whether you've practised out loud. Instant Interview lets you work through real cases with an AI interviewer that scores your structure, logic, and delivery.
Question categories
What you'll practise
Market sizing
"Estimate the number of electric vehicle charging stations needed in London by 2030."
Profitability & revenue
"A SaaS company’s margins dropped 15% in Q3. Walk me through your diagnosis."
Market entry
"Should a UK fintech expand into the US market? What’s your framework?"
Mergers & acquisitions
"Your client is considering acquiring a competitor. Walk me through the evaluation."
Operations optimisation
"A delivery company’s last-mile costs are 40% above industry average. What would you investigate?"
How it works
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Work through the case
The AI presents a business problem, listens to your analysis, challenges your assumptions, and asks follow-ups. It works like a real case interview.
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Get scored
Get instant scores for framework application, analytical rigour, communication clarity, and recommendation quality, plus an AI-rewritten version of your analysis.
Quantified feedback
Every answer, measured
No vague “good structure” feedback. Every session gives you numbers you can track and improve.
Framework application
Did you structure your approach before diving in? Scores whether you laid out a clear framework and worked through it systematically.
Analytical rigour
Are you using data and quantifying where possible? Vague reasoning gets flagged, and the AI pushes for specifics.
Communication clarity
Can you walk someone through your thinking step by step? Measures how clearly you signpost your logic and transition between sections of your analysis.
Recommendation quality
Did you land on a clear, justified recommendation? Evaluates whether you synthesised your analysis into a decisive conclusion with evidence behind it.
10 free credits on signup. No credit card required.
Why practise out loud
Thinking it through isn't the same as saying it
Voice reveals analytical gaps
Frameworks that look airtight on paper often collapse when you have to explain them live. Speaking forces you to confront gaps in your logic and missing assumptions that you’d otherwise skip over.
Company-specific prep
Enter your target company. The AI researches their industry and recent challenges, then presents cases you might actually face in that firm’s interview process.
Progress you can measure
Track your framework scores and analytical rigour across sessions. You’ll see where you’re improving and where you still need more reps.
Built for
Management consultants preparing for MBB and Big Four
Product managers facing case-based PM rounds
Strategy analysts with business problem interviews
MBA students entering consulting or tech
Business analysts moving into strategy roles
Anyone facing a case round
FAQ
Common questions
What is a case study interview?
A case study interview presents a business problem and evaluates how you structure your analysis, use data, and arrive at a recommendation. They’re a staple at consulting firms like McKinsey, BCG, and Bain, and increasingly common at tech companies for product management and strategy roles. Your framework, analytical rigour, and communication matter more than getting the "right" answer.
How does the AI evaluate my case study answers?
Four dimensions are scored: framework application (did you structure before diving in?), analytical rigour (did you quantify and use data?), communication clarity (can you walk through your thinking step by step?), and recommendation quality (did you land on a clear conclusion?). Each gets its own score so you know exactly where to focus.
What types of cases will I get?
Cases cover market sizing, profitability and revenue, market entry, mergers and acquisitions, and operations optimisation. If you enter a target company, the AI adjusts cases to match that company’s industry and known interview style.
Is this text-based or voice?
Voice. You speak into your microphone and the AI interviewer responds in real time. It asks clarifying questions and pushes back on your assumptions, just like a real case interview. No typing.
How long is a practice session?
Anywhere from 3 to 30+ minutes. You can end early at any time and only use credits for the minutes you actually practised. Most case study sessions work best at 15–30 minutes to allow time for a full case.
Can I practise for a specific company?
Yes. Enter your target company and the AI researches it before your session, then builds cases around that company’s industry, recent challenges, and known interview style. Especially useful for consulting firms with established case formats.
Do I need consulting experience?
No. The AI adapts to your level. If you’re new to case interviews, it guides you through frameworks and pushes you to structure your thinking. More experienced? It’ll challenge your assumptions and probe deeper into your analysis.
How much does it cost?
You get 10 free credits on signup, which is roughly 10 minutes of practice. After that, subscriptions start at £7.99/mo for 60 credits. You only pay for minutes used.
Other interview types
Your case round is coming up.
One practice case changes how you structure every analysis after it. Takes less time than reading another framework guide.
No credit card·Browser-based, nothing to install·End anytime, keep unused credits