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66 Days Prep
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Your daily edge in
banking & consulting.

Turn ambition into interview confidence with daily practice, AI feedback, and a focused 66-day plan.

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Trusted by 60,000+ job seekers

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Daily technical, behavioral, and networking practice in 66 Days Prep

Big ambitions. Focused preparation.

Goldman Sachs
McKinsey
BCG
Bain
J.P. Morgan
Morgan Stanley
HSBC

66

Days of progress

A structured path from the fundamentals to interview-ready practice.

AI

Personalized feedback

Practice your answers and find out exactly where you can improve.

Daily

Practice that adds up

Build consistency with focused drills, streaks, and visible progress.

Complete preparation

Master the concepts.
Then put them to work.

    Valuation
    Case frameworks
    Financial modeling
    Behavioral questions

Build strong fundamentals for investment banking, management consulting, and corporate finance with focused lessons and practical resources.

Build your habit with #66DaysPrep

Daily drills

Small sessions.
Sharper thinking.

Mental math & market sizing

Profitability & case frameworks

Excel & technical questions

Build speed and accuracy with timed practice. Review model answers, revisit weak spots, and make each session count.

AI mock interviews

Practice out loud.
Improve with feedback.

Answer realistic questions by voice and respond to follow-ups. Review your scores, delivery, strengths, and a stronger sample answer after each session.

Firm-specific focus

Your target role.
Your preparation path.

Focus your effort on the skills your next interview will test, from bulge-bracket banking to MBB consulting and private equity.

Investment banking

Management consulting

Corporate finance

Private equity

The 66-day method

A daily system. A stronger you.

Learn the fundamentals, practice with purpose, and see your progress add up.

Start with focused lessons on the frameworks, concepts, and technical skills that banking and consulting interviews test.

INVESTMENT BANKING · VALUATION

At 9.0× normalized EBITDA, what is the implied share price?

Reported consolidated EBITDA is $100m, after a one-off $10m legal expense. Normalize by adding back this expense.

Debt
$300m
Excess cash
$60m
Minority interest
$30m
Diluted shares
50m
$12.60
$14.40
$15.00
$19.80
Show worked answer

Normalized EBITDA: $100m + $10m = $110m.

Enterprise value: 9.0× $110m = $990m.

Equity value: $990m − $300m + $60m − $30m = $720m.

Per share: $720m ÷ 50m = $14.40.

Put your knowledge to work with daily drills, realistic cases, and AI feedback that helps you improve your answers.

Track your consistency, revisit weak spots, and turn steady practice into a stronger interview performance.

Built into real prep routines.

Candidates use 66 Days Prep to build consistency, strengthen weak spots, and show up ready for high-stakes interviews.

Anonymous

Consulting Candidate

Prepped for my McKinsey case interviews in record time. The AI coach knew exactly what I needed to work on.

Anonymous

Banking Analyst

Amazing for banking interviews. The AI picked up on my weak spots in valuation and drilled me until I had it down cold.

Anonymous

Finance Student

Love how it adapts to my learning style. The practice cases get progressively harder as I improve.

Maya R.

MBA Student

No more generic prep materials. 66 Days gave me personalized practice cases that matched my target firms.

Landed offers at two top consulting firms. This app was a game-changer.

Daniel K.

Career Switcher

Honestly, it works better than my $2000 interview coach. Real-time feedback on my case responses was incredible.

Thank you for creating such an amazing app!

Sophie L.

Incoming Analyst

66 Days tracked my progress across all interview types - case, fit, technical. Finally felt confident walking into Goldman.

Invest in your next chapter.

Choose the pace that fits your preparation. Build the skills that stay with you.

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  • Available for iPhone and iPad

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Monthly

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$15.99

/ month

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Full access for focused preparation when your next interview is coming up.

  • AI coach and personalized feedback

  • Daily math, case, and Excel drills

  • 66-day streak tracker and progress heatmap

  • AI resume review and quick practice

  • Pomodoro timer and screen blocker

  • Excel shortcut and formula guide

  • Banking and consulting resource hub

Yearly

Best value

$49.99

/ year

Get yearly

A full year to strengthen your fundamentals and keep your momentum going.

  • AI coach and personalized feedback

  • Daily math, case, and Excel drills

  • 66-day streak tracker and progress heatmap

  • AI resume review and quick practice

  • Pomodoro timer and screen blocker

  • Excel shortcut and formula guide

  • Banking and consulting resource hub

Frequently Asked Questions

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