Supported Features
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VoiceOver
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Voice Control
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Larger Text
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
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Reduced Motion
Mental Math Interview Trainer
Sharpen your math speed
Free · Designed for iPad. Not verified for macOS.
Train your brain like top candidates at McKinsey, BCG, or Bain.
Mental Math is your fast-track to mastering the quantitative skills in high-stakes interviews.
Mental Math helps you build fast, reliable mental calculation skills through short, focused practice sessions.
Whether you are preparing for consulting interviews (McKinsey, BCG, Bain), finance or tech case interviews, or any role that tests quantitative reasoning, this app gives you a simple way to drill the exact skills you need: quick multiplication, percentages, division, and growth calculations.
Practice in three modes:
• Speed: solve as many problems as you can before the clock runs out
• Accuracy: answer a fixed set of questions and aim for precision
• Custom: pick specific categories and set your own time limit
Adjust difficulty from Easy to Hard and fine-tune the tolerance margin so drills match your current level. Your results are saved locally on your device so you can track progress across sessions and spot improvement over time.
Features:
• Short daily mental math drills designed for interview prep
• Speed, Accuracy, and Custom practice modes
• Multiplication, percentage, division, and growth exercises
• Adjustable difficulty and tolerance controls
• Session summaries and long-term performance stats
• Lightweight, distraction-free design
• Available in English, French, and Spanish
Perfect for consulting interview prep, case interview math, finance interviews, product management interviews, or anyone looking to sharpen their everyday arithmetic.
Ratings & Reviews
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Fix bugs and improve the tests
The developer, Ludovic Lepic, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Ludovic Lepic
- Size
- 7.5 MB
- Category
- Education
- Compatibility
Requires iOS 26.4 or later.
- iPhone
Requires iOS 26.4 or later. - iPad
Requires iPadOS 26.4 or later. - Mac
Requires macOS 26.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Ludovic Lepic