Kraepelin Test: Brain Math
Focus & Concentration Drills
Free · Designed for iPad. Not verified for macOS.
Kraepelin Test is a brain training app that helps you practice number addition exercises inspired by the classic Kraepelin method. Sharpen your mental arithmetic, build concentration, and track your progress over time.
Whether you want to train your focus, practice mental math, or simply challenge yourself with a fun cognitive exercise, this app gives you unlimited practice with real-time scoring and detailed performance insights.
HOW IT WORKS
The app presents columns of single-digit numbers. Your task is to add each pair of adjacent numbers and enter only the last digit of the sum. Try to work as fast and accurately as possible before the timer moves to the next column.
FEATURES
- Classic Kraepelin-style number addition exercise
- Adjustable session duration and difficulty
- Configurable column timing for flexible practice
- Practice mode for relaxed training without time pressure
- Detailed results with accuracy, speed, and consistency metrics
RESULTS & PERFORMANCE TRACKING
- Accuracy percentage for each column
- Speed score (calculations completed per minute)
- Consistency graph showing your focus stability
- Historical performance tracking with progress charts
- Compare your scores across multiple sessions
GREAT FOR
- Students looking to improve concentration and mental math
- Brain training enthusiasts who enjoy cognitive challenges
- People who want to build better focus habits
- Anyone curious about the Kraepelin method of cognitive training
MORE FEATURES
- Clean, distraction-free interface designed for focus
- Dark mode for comfortable use day and night
- No account or sign-up required
- Works 100% offline
- Lightweight and fast
Download now and start building better concentration and mental speed.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
What's new:
- Brand-new calming forest-green design with light, dark, and auto themes
- Build a habit with daily streaks, a daily goal, and a 2-minute daily challenge
- Earn achievements and track progress with trends and performance insights
- Detailed metric rings plus a professional PDF report of every result
- Customisable accent colours, smoother onboarding, and polish throughout
The developer, Gunawan Santoso, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Gunawan Santoso
- Size
- 33.5 MB
- Category
- Education
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Micro App Digital