Kraepelin Test: Pauli Focus

About this app

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.

What's new in 1.6.2: - Minor improvements and bug fixes

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1. First observed Sep 17, 2026 · 11:54 AM Free