Variance: The Quant Prep App
Math, Brain Games, Probability
Free · In‑App Purchases
Variance is the ultimate quant interview prep app for aspiring traders, quant researchers, and finance professionals.
Whether you're targeting a role at a hedge fund, trading firm, or just prepping for fun, Variance gives you the tools to practice the quantitative skills that top firms test — rigorously and on the go.
WHAT YOU'LL PRACTICE
• Probability
• Mental math
• Sequences & Patterns
• Brainteasers & logic puzzles
• Expected value
FEATURES
• Hundreds of problems across multiple difficulty levels
• Detailed solutions and explanations for every question
• Topic-by-topic practice to target your weak spots
• Progress tracking to see how you improve over time
• Clean, distraction-free interface built for focused study
WHO IT'S FOR
Variance is built for students and professionals preparing for quantitative interviews at top firms, and other top quant shops. It's also great for anyone who wants to sharpen their mathematical intuition and problem-solving speed.
Prepare smarter. Interview with confidence. Download Variance today.
Terms of Use: www.thequantprepapp.com/terms
Privacy Policy: www.thequantprepapp.com/privacy
bugs and fixes
The developer, Benjamin Kawano, 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 Linked to You
The following data may be collected and linked to your identity:
- Financial Info
- Contact Info
- Contacts
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Benjamin Kawano
- Size
- 12.6 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Contests
- In-App Purchases
Yes
- Variance Pro Yearly $99.99
- Variance Pro Monthly $24.99
- Copyright
- © 2026 Caleb Kawano