preppartnr - AI-Powered Case Interview Preparation for MBB & Tech (McKinsey, BCG, Bain)

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Train in live partner-style simulations that adapt to your thinking in real time.

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Why prep with preppartnr?

Live Partner Simulation

Replicate the high-pressure environment of MBB interviews with adaptive, voice-interactive AI partners.

Instant Structured Feedback

Get immediate, detailed evaluations on your structuring logic, mathematical accuracy, synthesis, and communication.

Comprehensive Academy

Master the fundamental frameworks with our interactive textbook and consulting guides.

The preppartnr Academy

Master the structural foundations of case interviews with our curated lesson modules and worked examples.

Case Math & Mental Math Guide

Sharpen the mental math consultants use under pressure: percentages, break-even, weighted averages, and fast estimation techniques.

Assessment Control Center

Choose from our comprehensive library of case simulations. Start practicing aloud within 30 seconds.

Profitability · Intermediate · 25 Min

Vector Logistics

Analyze declining operating margins for a regional logistics provider facing cargo theft and driver shortages.

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Market Entry · Advanced · 30 Min

Neo-Charge EV

Evaluate a market entry and infrastructure deployment strategy for a commercial EV charging network.

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Growth Strategy · Beginner · 20 Min

Solar Horizon

Formulate a global growth strategy and capital allocation plan for a residential solar equipment manufacturer.

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