Do I need case interview prep if I'm not applying to MBB?

Not all firms use case interviews, but many consulting and finance firms do. Check each firm's interview format before applying. If cases are used, structured prep significantly improves performance.

How many cases should I practise?

Aim for 20-30 cases before your first real interview. Most candidates see significant improvement between case 1 and case 10. After case 20, improvement plateaus unless you focus on specific weaknesses.

Is PrepLounge worth £79 per month?

For serious case candidates, yes. The case library is unmatched. However, if you're on a budget, Intervyo (£29.99/mo) covers most firms and includes AI feedback.

Can I learn cases entirely from free resources?

Yes, but it's harder. Many firms publish cases online, and books like "Case in Point" are available cheaply. However, structured platforms accelerate learning.

Should I practise cases out loud or written?

Out loud. Case interviews are verbal. Practising silently won't prepare you for the actual interview format. Record yourself practising if possible.

What's the difference between case quantity and quality?

Quantity (PrepLounge) gives you breadth and builds comfort with different case types. Quality-focused platforms (CaseCoach, CraftingCases) build deep understanding. Ideally, do both.

Does AI case feedback replace a human coach?

No. AI provides objective feedback on structure and clarity, but a human coach catches logical flaws and can challenge your thinking. Use AI feedback for self-study, and seek human feedback before interviews.

Which platform is best for non-MBB consulting?

PrepLounge covers the broadest range. Intervyo is good for integrated prep. Most non-MBB firms have fewer case candidates, so any structured preparation gives you an advantage.

Honest Comparison · 2027

Best Case Interview Prep Tools 2027 — Compared

Honest comparison with real pros and cons. We acknowledge where competitors are better.

Quick verdict

TOP PICKIntervyo

Best integrated platform. Case practice, video feedback, and CV/psychometric all in one. Includes AI scoring on mock cases.

PrepLounge

Largest case database (1000+ cases). Strong for volume practice, but limited video feedback and no AI scoring.

CaseCoach

Good for structured frameworks. Interactive cases with video explanations, but smaller library than PrepLounge.

CraftingCases

Best for McKinsey interview prep specifically. High-quality cases and frameworks, but not comprehensive across all firms.

Feature comparison

Tool	Features	Firms	Price
Intervyo	Case practice, AI feedback, CV checker, psychometric tests, video recording	40+ firms (finance & consulting)	£29.99/mo
PrepLounge	1000+ cases, written solutions, video explanations, no AI	All major firms	£79/mo
CaseCoach	Structured cases, video walkthroughs, frameworks, interactive practice	MBB + others	£49/mo
CraftingCases	McKinsey-focused cases, frameworks, written solutions	McKinsey	£99/yr
Victor Cheng	Case interview course, frameworks, video course, written cases	All firms	$297 (one-time)
Self-practice	Use case libraries from firm websites or case books	All firms	Free (+ books)

Detailed reviews

Intervyo

Intervyo combines case interview practice with AI-scored feedback, CV checking, and psychometric tests. It's the most integrated platform for case interview preparation in the UK market.

Pros

AI scoring on case responses identifies structure, timing, and clarity issues

Case practice integrated with CV and psychometric prep

Free demo — try before paying

UK-focused pricing and support

Covers 40+ firms across consulting and finance

Cons

Smaller case library than PrepLounge (500+ vs 1000+)

Newer platform with smaller user community than competitors

AI feedback is complementary to, not replacement for, real interviewer practice

Best for: Candidates seeking integrated interview prep across cases, CV, HireVue, and psychometric tests.

PrepLounge

PrepLounge offers the largest case interview library in the UK with over 1000 cases and video explanations. It's the market leader for case volume.

Pros

Largest case library (1000+)

Video explanations of solutions

Community features for peer discussion

Covers all major consulting firms globally

Detailed written solutions

Cons

No AI-scored feedback — you review cases yourself

Expensive at £79/month compared to alternatives

No integration with broader interview prep (CV, psychometric)

No free trial

Interface could be more modern

Best for: Serious case interview candidates who want volume and are comfortable self-assessing without AI feedback.

CaseCoach

CaseCoach provides structured, interactive case practice with video walkthroughs and clear frameworks. It focuses on case mastery rather than volume.

Pros

Clear, interactive case practice

Video walkthroughs and step-by-step guidance

Strong on frameworks (SPICC, Issue-First, etc)

Free demo available

Good for beginners

Cons

Smaller case library than PrepLounge

No AI feedback or video of your own responses

Limited to text-based interaction

Pricing is higher per case than PrepLounge

Best for: Candidates new to case interviewing who want interactive guidance and structured frameworks.

CraftingCases

CraftingCases specialises in McKinsey case interview prep with a curated set of real McKinsey problem-solving cases and frameworks.

Pros

McKinsey-specific cases

High-quality case selection

Clear frameworks and solutions

Low one-time pricing (£99/year)

Excellent for McKinsey applicants

Cons

Very narrow focus — only McKinsey

Smallest case library

No video practice or feedback

Not suitable if applying to other consulting firms

Best for: Candidates specifically targeting McKinsey who want high-quality, focused case prep.

Victor Cheng Case Interview Course

Victor Cheng's "Case in Point" course teaches the complete case interview method through video lessons, frameworks, and written cases. It's more educational than practice-focused.

Pros

Comprehensive case interview methodology

Clear video instruction

Strong on frameworks and thinking process

One-time payment (no subscription)

Covers all consulting firms

Cons

Less case practice volume than PrepLounge

No interactive practice or AI feedback

Requires significant time investment

Better for learning than practicing

Best for: Candidates new to case interviews who need to understand the methodology before practicing.

Pricing comparison

Tool	Monthly	Annual	Free trial
Intervyo	£29.99	£199.99	Yes — full demo
PrepLounge	£79	£79 × 12 = £948	No
CaseCoach	£49	£490	Yes
CraftingCases	N/A	£99	No
Victor Cheng	N/A	$297 (one-time)	Free sample lessons

Who each tool is best for

Intervyo

Candidates who want integrated prep combining cases, CV, HireVue, and psychometric tests.

PrepLounge

Dedicated case interview candidates who want maximum practice volume and are willing to self-assess.

CaseCoach

Candidates new to case interviews who want interactive guidance and clear frameworks.

CraftingCases

McKinsey-specific candidates who want high-quality, focused preparation.

Victor Cheng

Candidates new to case interviews who want to learn methodology before practicing.

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