You can practice case interviews free with the firms' own sample cases (McKinsey, Bain, Deloitte and Oliver Wyman publish them), consulting club casebooks, peer partners from your school's club or PrepLounge's free plan, and free courses and drills. Soreno's sample case and drills are free with no sign-up, and you can try its AI interviewer free, as with several other AI tools. The table shows what each option is, whether it is AI or human, and who it suits.
Updated
Free to use as listed on each option's own page, read October 26, 2026. Free trials say how long they last.
| Option | What it is | AI or human | Price or free | Best for |
|---|---|---|---|---|
| McKinsey's sample cases Five sample cases with suggested answers
| Five sample cases with suggested answers | Self-study, from McKinsey | Free | Learning McKinsey's question-by-question format |
| Bain's practice cases Coffee Shop Co. and FashionCo., plus interview tips
| Coffee Shop Co. and FashionCo., plus interview tips | Self-study, from Bain | Free | Seeing how Bain sets up a case |
| Deloitte's Case Prep Tool 10 practice cases you answer and check, 15 to 20 minutes each
| 10 practice cases you answer and check, 15 to 20 minutes each | Self-study, from Deloitte | Free, answers not tracked | Interactive practice you can repeat |
| Oliver Wyman's samples Six case interview samples
| Six case interview samples | Self-study, from Oliver Wyman | Free | More firm-written cases to work through |
| OneDay@BCG BCG's free job simulation
| BCG's free job simulation | Self-study, from BCG | Free | A feel for consulting work before a BCG interview |
| Consulting club casebooks PDFs of cases with answers, published by MBA consulting clubs
| PDFs of cases with answers, published by MBA consulting clubs | Self-study, or with a partner | Free | A big stack of cases to read aloud or give a partner |
| Your school's club or a classmate Live peer cases, casebook sessions and workshops
| Live peer cases, casebook sessions and workshops | Human: peers | Free | Live practice with people you know |
| PrepLounge, free plan Peer meetings online, with limited cases and drills
| Peer meetings online, with limited cases and drills | Human: peers | Free with 10 peer meetings | Live cases with peers you haven't met |
| CaseCoach, free trial 10+ classes, 8 cases, up to 5 peer mock interviews and 50+ drills
| 10+ classes, 8 cases, up to 5 peer mock interviews and 50+ drills | Human: peers | Free for 10 days | Trying courses and peer practice before you pay |
| Crafting Cases fundamentals A free video course on case basics
| A free video course on case basics | Self-study, video | Free | Learning a method from zero |
| Victor Cheng's free videos 6 hours of case interview training videos
| 6 hours of case interview training videos | Self-study, video | Free | Learning by watching a method explained |
| Soreno's sample case A sample case with a timer and a strong-opening guide
| A sample case with a timer and a strong-opening guide | Self-study, from Soreno | Free, no sign-up | Trying a case right now |
| Soreno's free drills Timed case math sets and market sizing prompts with worked answers
| Timed case math sets and market sizing prompts with worked answers | Self-study, from Soreno | Free, no sign-up | Drilling math and sizing between cases |
| AI interviewers Soreno, Road to Offer, CaseRound, Case Room and Kasie run a case with you
| Soreno, Road to Offer, CaseRound, Case Room and Kasie run a case with you | AI interviewer | Soreno has a 7-day free trial. A first case free on Road to Offer, CaseRound and Case Room. Kasie free in beta | Saying a full case out loud with follow-ups, at any hour |
| McKinsey's AI Prep Tool McKinsey's tool for the quantitative part of its case
| McKinsey's tool for the quantitative part of its case | AI, from McKinsey | Free for invited candidates | McKinsey candidates practicing the numbers |
We build Soreno. Facts about other options come from their own pages, linked in each row or on the page it links to.
Each option costs nothing as listed on its own page, read on October 26, 2026. Where the free part is a trial, the table says how long it lasts.
Soreno's free sample case and drills are in the list with the rest. No ranking: pick by what you need next.
Free material is plenty. What matters is saying cases out loud and fixing one thing at a time.
First
Work McKinsey's Beautify and Bain's Coffee Shop Co. on paper, then compare with the firm's own answer. You learn the shape of a case before you practice one.
Every day
Percentages, growth, break-even and big numbers by hand, timed. Do it between cases, not instead of them.
Most days
Take a case from a casebook or Deloitte's tool and say every answer aloud on a timer, as if someone were listening. Record it on your phone if no one is.
Each week
Swap cases with a classmate, your club or a peer from PrepLounge's free plan, and give each other feedback.
When you want follow-ups
An AI interviewer asks follow-up questions on what you said at any hour. Several tools let you try a full case free.
From Georgetown: consulting careers.
Georgetown's career center suggests setting aside a couple of hours a week for cases and targeted drills on what needs work.
Soreno's own practice cases, free to read on our question pages, with a note on what a strong opening does.
A regional grocery chain's profits are down 20% in two years. Why?
Split profit into revenue and costs, then ask which moved before guessing why. Practice it, see a model answer
An airline carries more passengers but makes less money. What is going on?
Volume is up, so look at price per seat and cost per seat, and ask for the numbers to compare. Practice it, see a model answer
One of three divisions is losing money. Fix it, sell it or close it?
Set out what each option is worth, including costs the division shares with the rest of the company. Practice it, see a model answer
A European e-bike maker wants to enter the US. Should it?
Market size and growth, competitors, the client's edge, and the way in, ending in a clear yes or no. Practice it, see a model answer
A gym chain wants to double revenue in five years. How?
Break the goal into more members, more per member and more locations, and size each lever. Practice it, see a model answer
Brainstorm ways a movie theater chain could grow revenue.
Group the ideas before you list them, so the answer reads as a structure, not a pile. Practice it, see a model answer
How should a software company price a new add-on?
Start from the value to the customer, then check it against cost and competing products. Practice it, see a model answer
The main competitor just cut prices by 20%. How should the client respond?
Find out why they cut and who switches before recommending a match, a hold or a new offer. Practice it, see a model answer
Start here. Each card is from the firm's own careers site, read October 26, 2026.
McKinseyMcKinsey says its sample cases contain logic, thought processes and suggested answers, and recommends them to get used to the questions it asks. The five are Beautify, Diconsa, Electro-Light, a national education system and Talbot Trucks.
BainBain's case interview page has two practice cases, Coffee Shop Co. and FashionCo. It also points to free outside resources from Management Consulted, Crafting Cases, CaseCoach and RocketBlocks.
DeloitteDeloitte US's Case Prep Tool gives you a business situation and a series of questions, then lets you check your work. Deloitte says it is not an assessment, it does not track your answers and you can practice as often as you like.
Oliver WymanOliver Wyman's interview preparation page lists six case interview samples, from Urban Grocers to the Poseidon Water Park, that it says mimic real-world scenarios.
BCGBCG's case interview preparation page has its tips for the case and OneDay@BCG, a free job simulation of a consultant's day.
Soreno's AI interviewer asks follow-up questions, shows exhibits and scores your case, quoting your own words.
Start with the firms' own sample cases: McKinsey has five, Bain two, Deloitte's Case Prep Tool ten and Oliver Wyman six. Add consulting club casebooks, peer cases with classmates or on PrepLounge's free plan, free courses such as Crafting Cases' fundamentals, and Soreno's free sample case and drills.
Yes. Soreno's AI interviewer has a 7-day free trial. Road to Offer, CaseRound and Case Room each give a first case free, and Kasie is free during its beta. McKinsey gives its AI Prep Tool to candidates it invites to interview.
PrepLounge's free plan includes 10 peer meetings, and CaseCoach's 10-day free trial includes up to 5 peer mock interviews. Your school's consulting club is often the easiest free option.
Many are. Georgetown's career center suggests searching for consulting club casebooks to find PDFs that MBA clubs publish, and notes that some are old but still useful practice.
No. Free cases, casebooks, peers and drills can get you far. People pay for more cases, structured courses, an AI interviewer they can use every day, or a coach before a final round.
Say cases out loud. Reading a case teaches the shape, but the interview is spoken, so take free cases from the firms or a casebook and answer them aloud on a timer, with a partner or an AI interviewer when you can.
