Kraepelin Test: Pauli Focus
Aptitude, Brain & Mental Math
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Kraepelin Test is the complete Pauli & aptitude test trainer: practice mental math, focus and concentration to get ready for psychometric, job and recruitment assessments. Build the speed, accuracy and endurance that hiring tests measure — a little every day.
The Kraepelin Test (also known as the Pauli test or "Koran" test) is a classic speed-arithmetic drill used worldwide in psychological and employment assessments. This app turns that drill into a daily habit, with real-time scoring and clear performance insights.
HOW IT WORKS
You see columns of single-digit numbers. Add each pair of adjacent digits and tap only the LAST digit of the sum — as fast and accurately as you can before time runs out. Simple to learn, genuinely challenging to master.
WHAT IT TRAINS
- Speed — mental arithmetic under time pressure
- Accuracy — precision on long, repetitive calculations
- Consistency — steady focus from start to finish
- Endurance — concentration stamina over long drills
BUILD A DAILY HABIT
- Streaks that reward you for practicing every day
- Daily goal ring — set 3, 5 or 10 minutes and watch it fill
- Daily Challenge — beat your best score to earn a bonus
- Achievements to unlock as you improve
- History & Trends — track speed, accuracy, consistency and endurance over time
DETAILED RESULTS
- Overall score with a Very Bad to Very Good rating
- Correct, wrong, accuracy % and speed for every session
- Segment-by-segment performance charts
- Deeper Insights: your strongest area, the area to improve, and per-metric rings
- Export any result to PDF and share it
REAL EXAM PRACTICE
- Official 11.5-minute and 22.5-minute drills
- Quick 1, 2, 5 and 30-minute sessions, or a custom length
- Horizontal or vertical question layout
- Phone (123) or calculator (789) keypad
MORE
- Works 100% offline — practice anywhere, no internet needed
- Dark mode and accent colors
- Sound & vibration feedback
- English & Indonesian
- No sign-up required — start instantly
PERFECT FOR
- Job seekers preparing for psychometric and aptitude tests
- Students getting ready for company or civil-service entrance exams
- Anyone training focus, concentration and mental math
- Brain-training fans who love a daily cognitive challenge
Remove ads anytime with a one-time Premium upgrade.
Download Kraepelin Test and start building sharper focus, faster mental math and stronger concentration today.
- This app’s overall rating was recently reset.
What's new in 1.6.2:
- Minor improvements and bug fixes
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
- 47.8 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 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
- In-App Purchases
Yes
- Premium — Lifetime $1.99
- Copyright
- © 2026 Micro App Digital