For McKinsey, Bain, BCG, Big 4 & tier-2 candidates
Land the consulting offer. Train the skills that decide it.
The 5 mental skills consultants test in case interviews, drilled in a single 5 to 10 minute session a day. No accounts. No onboarding. Open the app and start.
Want to see how it feels? Run a 30-second drill below.
Free practice. No signup.
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Built for candidates targeting
4.9 / 5
App Store rating
100K+
Drills completed
90+
Countries
15 min
Daily session
The 5 drills
Five skills decide the case interview. We train all five.
Each daily session mixes problems from every category. You finish in under 10 minutes with feedback on speed, accuracy, and where you are losing time.
Mental Math
Math at consultant speed
Multiplication, division, percent, and ratio calculations at the pace real consultants do them, without a calculator.
Case Math
The math interviewers actually ask
Profitability, revenue, growth, and break-even calculations under time pressure, in the exact format used in live case interviews.
Market Sizing
Fermi estimates, top-down
Estimation problems with structured breakdowns. “How many dentists are there in Germany?” answered the way a senior associate would.
MECE Structuring
Clean issue trees, fast
Multiple-choice drills that train you to build mutually exclusive, collectively exhaustive issue trees the way consultants are taught.
Framework Recall
Spaced repetition for frameworks
Leitner-style flashcards covering Porter's Five Forces, 4Ps, 3Cs, Value Chain, 7S, and the rest of the canon, so you remember them on interview day.
One short session. All five skills. Every day.
Why CaseXcel
Built around one habit, not 47 features.
The old version of this app had a library of cases, video walkthroughs, accounts, and onboarding flows. None of that helps you pass a case interview. The new version does three things, and does them well.
Open the app. Start drilling. That is the whole onboarding.
No sign-up. No account. No tutorial. The first tap is Start, and the first rep is on screen in under five seconds. Most prep apps lose you to friction before you ever practice. We removed it.
No sign-up, ever
No email, no Apple sign-in, no OAuth. Your progress lives on your device. We do not have a server that knows who you are.
First rep in five seconds
Cold-launch to a live drill faster than most apps load a splash screen. Friction is the enemy of daily practice.
No tracking, no analytics on you
We do not collect drill answers, performance data, or behavior. Everything stays on your phone.
A short daily session, mixed across all five skills.
Five to ten minutes a day, every day. Each session pulls from mental math, case math, sizing, structuring, and framework recall, so you build them in parallel instead of cramming one and forgetting the rest. The way performance skills actually compound.
Five to ten minutes
Short enough to fit between classes or on a commute. Long enough to push you. Anything more and adherence drops within a week.
Mixed practice, not blocked
Research on motor and cognitive skill says interleaving beats blocking. Our sessions mix drill types instead of marathoning one.
Honest feedback per drill
Speed and accuracy on every attempt. The app tells you which categories are dragging your average, not just whether you got it right.
A clean reference Library, no fluff.
Porter's Five Forces, 4Ps, 3Cs, Value Chain, 7S, profitability, market entry, M&A, pricing. The frameworks every case candidate is expected to recall. Hand-written summaries you can scan in 60 seconds. No video walkthroughs, no quizzes, no padding.
Hand-crafted, not bulk-generated
Every framework page is written and edited by people who use these in interviews and on the job. No filler.
Built to scan, not to read
Short bullets, the right diagrams, common pitfalls. The format you actually want the night before an interview.
New drills ship over-the-air
Content updates land on your phone the day we publish them. No waiting for an App Store release cycle.
The Library
A clean reference, no quizzes, no videos.
The frameworks every case candidate is expected to recall, written by people who use them, kept short enough to scan the night before an interview.
Industry analysis
Porter's Five Forces
Rivalry, new entrants, substitutes, supplier power, buyer power. Used to judge how attractive an industry is to operate in.
Case math
Profitability Tree
Profit = Revenue minus Cost. Decompose both sides until the driver is concrete enough to act on.
Marketing
4Ps
Product, price, place, promotion. The default starting point for any marketing or go-to-market case.
Strategy
3Cs
Customer, company, competitor. The fastest way to structure most strategy prompts before specifics come in.
Operations
Value Chain
Primary activities and support activities. Used to find where a company actually creates and captures value.
Organization
McKinsey 7S
Strategy, structure, systems, shared values, skills, style, staff. Read an org by checking alignment across all seven.
Plus profitability, market entry, M&A, pricing, growth strategy, and more. All offline, all in the app.
What candidates say on the App Store
Real reviews, pulled live from the App Store.
Got into McKinsey
"Didn’t expect much but it’s actually good. Super quick to use and I kept coming back to it. Mental math part was so useful for McKinsey interviews"
Actually enjoyed using this for case prep
"I really liked CaseXcel. The practice is short, but it still feels relevant to real case interviews. I enjoyed using it and it made prep feel less boring than I expected."
Great app helped me get into big 4
"I’ve been preparing for consulting interviews and this app actually helped more than I expected. The mental math feels realistic and a bit stressful (in a good way), which is exactly what you need for cases. Simple, focused, and useful. Was able actually land an offer."
100K+
Drills completed by candidates training for consulting interviews this year.
4.9
Average App Store rating from users who turned daily practice into offers.
90+ countries
Candidates from MBA programs, undergrad, and lateral hires using the app every week.
Pricing
Pay once, or pay nothing. No trials, no auto-rebills.
Every user gets one full training session a day, forever, on the free tier. Unlock unlimited sessions for the weeks you are actively preparing, or pay once for lifetime access.
Includes
- One daily training session
- All 5 drill types included
- Full Library access
- No account, no sign-up
- No ads, no tracking
Includes
- Unlimited training sessions
- All 5 drill types
- Full Library access
- New drills shipped over-the-air
- Cancel anytime in Settings
Includes
- Unlimited sessions, forever
- Every future drill type included
- Full Library access, always
- Pays for itself in two months
- Pay once, never again
Prices in USD. Local pricing varies per App Store storefront. Subscriptions and refunds are managed by Apple.