MindMath Pro

The mental math drill app for quant, consulting, and GMAT interview prep. New: tricks library, weakest-area data, custom keypad, daily streak.

MindMath Pro is mental math practice for quant traders, consultants, and anyone facing an interview where "what's 17 × 23?" is a real question. Drill the same patterns as the Optiver 80-in-8, Jane Street's mental math test, and McKinsey case math, with a clean timer and accuracy tracking that shows your real progress.

WHO IT'S FOR

• Quant and trading interview candidates (Jane Street, Optiver, SIG, Citadel, Jump)
• Consulting interview candidates (McKinsey, Bain, BCG, tier-2)
• GMAT and GRE quant prep
• Anyone who wants sharper everyday calculation

WHAT'S INSIDE

• Smart Practice with addition, subtraction, multiplication, and division
• Consulting Prep mode tuned to case math
• Quant Speed mode tuned to trading interview ranges
• Four difficulty levels, including a Quant tier with 3-digit work
• Custom number pad with auto-submit so you can move at speed
• Daily streak with streak freezes for Pro users
• Tricks Library: 27 mental math shortcuts taught right after a wrong answer
• Per-operation accuracy data so you know your real weakest area
• Mistake review at the end of every session
• Practice reminders at a time you choose

PRO MEMBERSHIP

• Unlimited practice sessions and problems
• Hard and Quant difficulty unlocked
• Full Tricks Library access
• Daily streak freezes to protect your streak when life gets in the way
• Performance insights

PRICING

• Free: 30 problems and 3 sessions per day, easy and medium difficulty
• Weekly, monthly, or annual subscription, with a 3-day free trial on the annual plan
• One-time 30-day Interview Crunch pass for users who don't want a recurring subscription

Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. You can manage or cancel any time in Settings.

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