Cases are spoken
You need to explain your logic while the interviewer is listening, not only understand it silently.
Case interview practice
Case interview practice that feels like the real interview
CaseLab helps consulting candidates practice realistic MBB-style case interviews out loud with a live AI interviewer, then get scored feedback and targeted drills based on the weak spots that show up across cases.
First full case free. No credit card required.
Live voice casesScored Coach Briefings30 free structuring drillsUnlimited cases with paid access
Your AI interviewerLive follow-up
Exhibit 2
Cost per unit by line item
$ per unit · FY24 vs FY25
Materials2.43+31%
Labor1.24+3%
Logistics0.78+5%
Overhead0.53+2%
FY24FY25Source: client finance data
Real-time pushback: quantify the materials spike before you hypothesize.
Why practice out loud
Reading frameworks is not the same as performing in a case.
Real case interviews test how you think, speak, calculate, and recover in a live conversation. You need reps that create the same pressure, then feedback that tells you what actually broke.
Pressure changes performance
A structure that looks good on paper can fall apart when you have to lead the conversation.
Feedback must be specific
Generic notes are not enough. You need to know the exact behavior to fix before the next rep.
How CaseLab practice works
Every rep turns into a clearer next fix.
Run a live voice case
Start a realistic MBB-style case and speak your thinking out loud, just like you would with an interviewer.
Handle follow-ups and ambiguity
Lead the case, respond to pushback, ask clarifying questions, work through exhibits, and manage the math under pressure.
Get a scored Coach Briefing
After the case, review scores, strengths, weak spots, and the clearest next fix from your actual performance.
Drill the highest-priority gap
Use short voice structuring drills and focused practice to train the skill that broke down first.
Let the next rep adapt
As patterns repeat across cases, CaseLab tracks weak spots and points you toward the next case, drill, or coaching focus.
What to practice
Train the skills interviewers actually test.
CaseLab is built around active spoken practice, not passive content. Use full cases for interview pressure and short drills for targeted skill work.
Full case interviews
Practice the whole flow from prompt to final recommendation, not isolated theory.
Structuring
Build tailored issue trees, choose a first branch, and explain why your structure fits the case.
Math and exhibits
Set up calculations, keep units clean, interpret charts, and connect numbers back to the decision.
Synthesis
Lead with the answer, support it with evidence, and name the most important risk or next step.
Communication
Practice saying the work clearly, calmly, and in a way an interviewer can follow.
Case leadership
Train the habit of driving the conversation instead of waiting for the interviewer to rescue the flow.
Firm guides
Prepping for a specific firm?
Each MBB firm runs its case interview a little differently. These guides cover the format, the skills it rewards, and how to practice for it.
McKinsey & Company
Interviewer-led cases, the Personal Experience Interview, and the Solve assessment — what each one tests, and how to train for it out loud.
Read the McKinsey guideBoston Consulting Group
Candidate-led cases, the Casey online case, and exhibit-heavy analysis — and how to practice driving a case out loud.
Read the BCG guideBain & Company
Practical, answer-first cases, heavy market sizing, and a written-case round at some offices — and how to close every case with a clear recommendation.
Read the Bain guideCase types
Practice across the case types you are likely to see.
The paid path covers major consulting case types and more, so you can build pattern recognition without memorizing one rigid framework.
ProfitabilityMarket entryRevenue growthPricingM&ATurnaroundCompetitive responseNew product launchPublic sectorInvestment diligence
Read the case type playbooksPractice paths
Start free, then build enough reps to become interview-ready.
Start with a diagnostic
Use the handbook to learn the basics, then take one full live voice diagnostic case to see where you stand.
- One full live voice case
- Scored Coach Briefing
- Up to 30 free structuring drills
Build repeatable performance
Practice across cases, review every Coach Briefing, and train recurring weak spots until the performance becomes stable.
- Unlimited cases
- $299 one-time payment
- 12-month access
Add expert judgment when needed
Use CaseLab for repeatable reps, then add an ex-MBB coaching call when you want expert judgment on readiness or strategy.
- Useful before final rounds
- Best after you have practice data
- Pairs with Coach Briefings
CaseLab vs alternatives
Use the right tool for the right part of prep.
Serious candidates often combine methods. CaseLab is strongest when you need realistic, repeatable, on-demand practice with feedback tied to your actual performance.
Peer practice
Useful for: Live communication and habit-building.
Watch out: Feedback quality depends heavily on the partner.
CaseLab role: Gives you on-demand spoken reps and a consistent Coach Briefing after every case.
Human coach
Useful for: Expert judgment, final-round readiness, and nuanced communication feedback.
Watch out: Often costs $150-$350+ per hour and depends on scheduling.
CaseLab role: Tracks your whole practice journey and turns repeated patterns into targeted next steps.
Case course
Useful for: Learning concepts, common case types, and beginner language.
Watch out: Passive learning can become procrastination if you delay live cases too long.
CaseLab role: Moves you from knowing the concepts to performing them under interview pressure.
General AI tool
Useful for: Brainstorming prompts, quick explanations, and flexible self-study.
Watch out: Generic AI is not designed for case interviews, so practice flow and feedback can be unrealistic.
CaseLab role: Is built specifically for realistic case interviews, scored feedback, drills, and weak-spot tracking.
Practice FAQ
Questions candidates ask before starting live reps.
Can I practice case interviews alone?
Yes. CaseLab is designed for candidates who want realistic spoken case interview practice without needing to coordinate a peer, coach, or consulting club partner every time.
How many case interviews should I practice?
There is no universal number. The goal is to build stable performance across case types and remove recurring weak spots. Quality, feedback, and targeted repetition matter more than raw case count.
Can AI help with case interview practice?
AI can help increase practice volume, but generic AI feedback is often too broad for serious case prep. CaseLab is tuned for case interview flow, spoken practice, scored Coach Briefings, and targeted weak-spot improvement.
How do I know what to improve after a mock case?
Use the Coach Briefing to identify the highest-priority breakdown first. That might be structure, math setup, exhibit interpretation, synthesis, business judgment, communication, or case leadership.
Is CaseLab enough without a human coach?
Many candidates can use CaseLab for high-volume, on-demand practice and feedback. Some candidates may still add a human coach for expert judgment, final-round strategy, or communication nuance.
Start the first rep
Take one real case, then let the feedback show you what to fix.
Start with the free diagnostic or read the Case Interview 101 handbook if you are brand new to case interviews.