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- 4.88 from 645 reviews
- Pay once, no subscription
- Single tools £10, or get a bundle
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A free trial of every tool. No card needed.
What do you need?
Which firm?
no fork here: you pick from the directory. Each coach sets their own price.
MBB test prep
All 12 McKinsey, BCG and Bain tools.
£40save £80
Buy for £40 Add Case Ace: both for £70Your answer
Find your prep
Case prep
The case library
Full cases run by an AI interviewer. It opens the case, asks question by question, shares exhibits when you ask, then marks every answer.
Case typesProfitability, market entry, M&A, pricing, growth, operations, cost reduction, turnaround, product launch, investment, digital, AI and more
After each casePer-question marks and a written report
The £70 adds all 12 McKinsey, BCG and Bain test tools. Unlimited Case Drills with either. Try a drill free, or browse the library.
Introduction to case interviews
Six chapters that walk the whole case arc, from how a case runs to landing the recommendation. Three lessons are free to read.
- How the case works
- Starting the case strong
- Building your structure
- Exhibits and numbers
- The messy middle
- Landing the recommendation
No account needed to begin. New to cases? Read what a case interview is. Also free: case interview frameworks and case interview maths. Ready for live, marked cases? Get Case Ace — £40.
Structuring and frameworks
Catch the brief, ask the questions that matter, then build a structure you can say out loud. The interviewer probes it before moving on.
LessonsStarting the case strong. Building your structure: the core frameworks, custom structures and a self-check.
DrillsCase setup, structure, prioritisation
The £70 adds all 12 McKinsey, BCG and Bain test tools. Unlimited Case Drills with either. Try a drill free or look inside Case Ace.
Exhibits, case maths and analysis
Read each exhibit with a purpose, do the maths without losing the room, and turn the number into a so-what.
LessonsExhibits and numbers: reading a profit bridge, sizing a market out loud, mental maths in the room.
DrillsExhibit analysis, case maths, guesstimates
The £70 adds all 12 McKinsey, BCG and Bain test tools. Unlimited Case Drills with either. Try a drill free or look inside Case Ace.
Synthesis and executive presence
Take a position without overclaiming, hold it under pushback, and close with an answer the client could act on.
LessonsThe messy middle: taking a position, handling pushback. Landing the recommendation: the recommendation formula, sounding client-ready.
DrillsPoint of view, brainstorming, final synthesis
The £70 adds all 12 McKinsey, BCG and Bain test tools. Unlimited Case Drills with either. Try a drill free or look inside Case Ace.
Personal fit and behavioural prep
The fit half of the interview is scored too. Case Ace covers what gets asked, and the BCG and Bain video interviews have you answer on the clock.
In Case AceThe fit half of the interview: motivation, experience stories and your CV
Out loudBCG and Bain video interviews: motivation and behavioural questions, timed. Both come with the £70.
Want a person to hear your stories? Practise 1:1 with a coach.
Test prep
McKinsey bundle
All four McKinsey Solve tools, 3 runs of each.
£25£40save £15
Outcome guarantee on this bundle only. Read the terms. Unlimited Case Drills included.
Read firstThe McKinsey recruitment processMcKinsey SolveSustainable Futures Lab
BCG bundle
Quant, Casey and the video interview, 3 attempts of each.
£20£30save £10
Pay once. Runs never expire. Unlimited Case Drills included.
Read firstThe BCG recruitment processThe BCG Quant testThe Spark Hire video interviewThe Casey chatbot
Bain bundle
All four SOVA tests plus the video interview, 3 attempts of each.
£30£50save £20
Pay once. Runs never expire. Unlimited Case Drills included.
Drill prep
Case Math
Case maths under time pressure: profitability, breakeven, payback, margins, CAGR, unit economics and more.
Any purchase, from a single £10 tool upwards, unlocks unlimited Case Drills.
Market Sizing
Build an estimate from your own assumptions, or spot the one that is out of range.
Any purchase, from a single £10 tool upwards, unlocks unlimited Case Drills.
Charts
Read exhibits: bars, waterfalls, Marimekko, statements, Sankey and more.
Any purchase, from a single £10 tool upwards, unlocks unlimited Case Drills.
Structuring
Pick or build a MECE structure for profitability, market entry, M&A, growth, pricing and operations.
Any purchase, from a single £10 tool upwards, unlocks unlimited Case Drills.
Brainstorming
Generate ideas: growing revenue, cutting costs, why a number moved, what could go wrong.
Any purchase, from a single £10 tool upwards, unlocks unlimited Case Drills.
Speed Math
A separate free tool to sharpen your mental maths, before you move on to case maths.
Open Speed MathFor case-style maths, pick Case Math.
Practise 1:1 with a coach
Practise 1:1 with a coach
Browse the coach directory, read profiles and book one-to-one case sessions. Coaches set their own prices, shown on each profile.
Find a coachPrefer to practise with a peer? Find a case partner.
Pricing
Pay only for what you need.
No subscriptions, no recurring billing, no unnecessary upsells. Pick a single tool or a firm bundle, take all 12 McKinsey, BCG and Bain tools as MBB test prep, get Case Ace for the case interview, or have both for £70.
Targeting one test? Every single tool is £10 for 3 runs or attempts.
| Firm bundles | Across all three firms, and case prep | |||||
|---|---|---|---|---|---|---|
| What you get | McKinsey bundle4 tools | BCG bundle3 tools | Bain bundle5 tools | MBB test prep12 tools | Case Ace6 areas | MBB test prep + Case Ace12 tools + Case Ace |
| McKinsey Solve | ||||||
| Sea Wolf Solver£10 alone | Included | Not included | Not included | Included | Not included | Included |
| Sea Wolf Simulation£10 alone | Included | Not included | Not included | Included | Not included | Included |
| Redrock Simulation£10 alone | Included | Not included | Not included | Included | Not included | Included |
| Sustainable Futures Lab£10 alone | Included | Not included | Not included | Included | Not included | Included |
| BCG | ||||||
| BCG Quant Simulation£10 alone | Not included | Included | Not included | Included | Not included | Included |
| BCG Casey Chatbot Assessment£10 alone | Not included | Included | Not included | Included | Not included | Included |
| BCG Video Interview£10 alone | Not included | Included | Not included | Included | Not included | Included |
| Bain | ||||||
| Bain SOVA Numerical£10 alone | Not included | Not included | Included | Included | Not included | Included |
| Bain SOVA Verbal£10 alone | Not included | Not included | Included | Included | Not included | Included |
| Bain SOVA Logical£10 alone | Not included | Not included | Included | Included | Not included | Included |
| Bain SOVA Personality£10 alone | Not included | Not included | Included | Included | Not included | Included |
| Bain Video Interview£10 alone | Not included | Not included | Included | Included | Not included | Included |
| Case Ace: case interview prep | ||||||
| Adversarial AI interviewer10 cases included | Not included | Not included | Not included | Not included | Included | Included |
| Case libraryFull cases with an AI interviewer | Not included | Not included | Not included | Not included | Included | Included |
| Introduction to case interviewsHow a case runs, with three free lessons | Free | Free | Free | Free | Included | Included |
| Structuring and frameworksTurn the brief into a plan of attack | Not included | Not included | Not included | Not included | Included | Included |
| Exhibits, case maths and analysisRead the chart, then do the maths aloud | Not included | Not included | Not included | Not included | Included | Included |
| Synthesis and executive presenceTake a position and sound client-ready | Not included | Not included | Not included | Not included | Included | Included |
| Personal fit and behavioural prepWhy consulting, your stories, your CV | Not included | Not included | Not included | Not included | Included | Included |
| With every purchase | ||||||
| Case Drills, unlimitedwith any purchase | Included | Included | Included | Included | Included | Included |
| Free for everyone | ||||||
| Consulting CV BuilderLive A4 preview, PDF download, ranked transferable skills | Free | Free | Free | Free | Free | Free |
| Runs | 3 runs of each | 3 attempts of each | 3 attempts of each | 3 runs or attempts of each | All six areas | 3 of each tool, plus Case Ace |
| You pay | £25 | £20 | £30 | £40 | £40 | £70 |
| You save | £15worth £40 | £10worth £30 | £20worth £50 | £80worth £120 | one product | £90worth £160 |
| Buy | Buy for £25Outcome guarantee, McKinsey bundle only. Terms | Buy for £20Quant, Casey and video | Buy for £30Four SOVA tests plus video | Buy for £40Every tool, all three firms | Buy for £40Interviewer, lessons and drills | Buy for £70Everything on this page |
Four McKinsey tools, worth £40. Outcome guarantee covers the McKinsey bundle only. Read the terms.
Three BCG tools, worth £30. Save £10.
Five Bain tools, worth £50. Save £20.
All 12 McKinsey, BCG and Bain tools, worth £120. Save £80.
All six areas of case interview prep. Unlimited Case Drills included.
All 12 tools plus Case Ace, worth £160. Save £90.
- Secure card payment by Stripe
- Prices include taxes
- Instant access to your account
- Runs never expire
What is a run? Confirming the entry prompt for a tool uses one run. Within that open session you can re-run freely, and every product you buy comes with three runs or attempts.
Any purchase, from a single £10 tool to Case Ace, also unlocks unlimited Case Drills: timed case maths with worked solutions and mental-maths shortcuts. Prices in GBP, taxes included. International? See your local currency at Stripe checkout.
Already purchased? Your purchases live on your account. Go to your dashboard to see your remaining runs.
From recent candidates
What people said after their assessment.
Rated 4.88 from 645 reviews
- 4.89 from 604 reviews
- 4.88 from 645 reviews
- 4.89 from 604 reviews
- 4.88 from 41 reviews
- 4.75 from 83 reviews
When I applied before my MBA I didn't get an invite to R1 or a callback, I think it was partially because I ended up running out of time. Keen not to lose the opportunity this year, I decided to try this and I'm quite glad I did. Thankfully I got the email inviting me to first round shortly after this, so THANK YOU!
The Sea Wolf solver saved me — I just didn't have enough time to prep for this as I was handling loads of applications at the same time. It would be worth the £10 on its own twenty times over but I ended up getting the bundle.
Used: Sea Wolf Solver
Honestly skeptical at first, I thought it would be some vague framework but it's not. Strangely and I don't know how you guys did it the questions were very, very similar from the simulations. The solver was quite easy to use and took me about 4 minutes to punch in the numbers and get the answers.
This was the most realistic BCG Quantitative simulation I found. It was quite uncanny. I tried some free tests elsewhere but they were quite far off the mark. I can attest that this is similar to the London office test.
Used: BCG Quant Simulation
Bought the bundle the night before my assessment and ran through two of each of the simulations. Didn't expect much given how little I'd prepared for this particular assessment, I was mainly casing. I finished both games with time to spare though, normally I'm rushing on the last screen barely reading things! The hour I spent actually felt like it was enough preparation.
Used: McKinsey Bundle
Great prep, reasonably priced unlike other services... will recommend to my university society!
Used: Bain Video Interview
Used it purely for practice with the simulations since I didn't feel using the solvers was right for me. The simulations basically match exactly what the real game asks and look like, but with a different color scheme. I did make it through without the calculators but I'm pretty sure I would have ran out of time without the simulation prep.
Used: Sea Wolf Simulation
Thankfully I found this in time. Though the quant questions were similar to the GMAT, they aren't exactly the same, so was useful to use this a few times prior to sitting the test.
Used: MBB Bundle
Super helpful. Pretty close to the actual assessment, impressive, thank you!
Used: MBB Bundle
I'm experienced/switching careers so it's been ages since I've touched ANYTHING like this. I was a little nervous going into it, admittedly. This put my mind at rest and was worth every dollar. Massive thanks!
Used: MBB Bundle
Customer service was super quick with a query I had, very pleasant to deal with. Thanks for answering my questions! Would strongly recommend this platform.
Used: Bain Bundle
Ratings by product
- Sea Wolf Solver4.86 (198)
- Sea Wolf Simulation4.88 (53)
- Redrock Simulation4.90 (41)
- Sustainable Futures Labnew
- BCG Quant4.87 (29)
- BCG Casey Chatbot Assessment4.90 (12)
- BCG Video Interviewnew
- Bain SOVA Numerical4.75 (18)
- Bain SOVA Verbal4.75 (16)
- Bain SOVA Logical4.75 (15)
- Bain SOVA Personality4.75 (14)
- Bain Video Interview4.75 (20)
Reviews are from buyers' feedback; first names and initials are used for privacy and long reviews are shortened.
Guides
Read up before you practise.
- The BCG Quant testFormat, timing and worked practice questions.
- The McKinsey recruitment processEvery stage from application to final round.
- BCG’s Spark Hire video interviewThe format, the questions and how to prepare.
- McKinsey’s Sustainable Futures LabThe 2026 three-day format and the original.
- McKinsey SolveThe games, the timing and how it is scored.
- The Sea Wolf gameChoosing microbes for three sites: flow and scoring.
FAQ
Questions, answered.
What's included in the free trial?
Every tool can be tried before you buy, on the real product interface: the first part of the test, such as the first 3 BCG Quant questions, then an example report, started from any product page, no card needed. It lands on your account immediately.
How close is it to the real test?
Each product mirrors its real assessment: the same format, timing and question styles you'll meet on the day. The solvers can be used as you walk through the real Sea Wolf assessment; the simulations run the same timed, server-scored flow. We're an independent prep service: realistic practice, not the official test.
Is there a refund guarantee?
Yes, on the McKinsey bundle. Prepare with the McKinsey bundle, use every tool in it, and if McKinsey rejects you and your score is below the 8th decile, you get a full refund, requested within 30 days of purchase. It covers McKinsey bundle purchases only: read the terms. Whatever tool you use, if you hit any issues, please reach out to us.
Can I buy Case Ace on its own?
Yes. Case Ace is £40 on its own: the AI case interviewer, the full case library, and lessons and drills for structuring, exhibits and case maths, synthesis and personal fit. Sitting the online tests too? MBB test prep + Case Ace is £70 for all 12 McKinsey, BCG and Bain tools plus Case Ace. Three lessons from the introduction to case interviews are free, no account needed.
How do the runs work?
Everything lives on your account. A purchase unlocks access to a product instantly: three runs or attempts per product. Confirm the entry prompt and one run is consumed; re-run freely within that open session. Once a run is consumed it will not come back.
Do my runs expire?
No. Runs stay on your account until you use them. Buy now, practise when your assessment is scheduled.
Ready to sit it for real?
Run the full timed assessment first. Three runs of every tool you buy, no subscription.
★ 4.88 from 645 reviews · Outcome guarantee on the McKinsey bundle