Abaco vs Soroban Abacus Dojo

Abacus Flash Mental Math Training The best flash mental math app to improve your calculation skills anytime, anywhere! Start practicing immediately with default settings or customize everything to your preference. Ideal for mental math competition prep, brain training, and improving math skills. A proven app experienced by over 20,000 users! Key Features: Two Practice Modes • Addition/Subtraction Mode: Step-by-step addition and subtraction practice • Multiplication/Division Mode: Systematic multiplication and division mental training Designed for Abacus Mental Math • Built-in difficulty adjustment algorithm prevents problems from becoming too easy • Subtraction problems are designed so answers never go negative • Division problems always result in whole numbers • Optimized for flash training, similar to abacus competition programs Convenient Customization • Addition/Subtraction Mode: 1-8 digits, 2-200 problems • Multiplication/Division Mode: 1-8 digits × 1-8 digits • Speed control (0.1s-30s) • Custom theme color support • Presets: save and load your favorite settings instantly Multi-language Support • 40+ languages: English, Korean, Japanese, Chinese, Spanish, German, French, and more • Intuitive interface for all languages Recommended for: • Teachers running abacus/mental math schools • Students learning abacus/mental math • Adults seeking brain training • All ages wanting to improve math skills • Those wanting to develop concentration and calculation abilities Experience amazing improvement in mental math skills with just a few minutes of practice daily! With your permission, install and usage events and an app-instance ID are sent to Google Analytics to measure app use and ad performance. No advertising ID or personalized ads. Optional; change this anytime in App Info.

A real abacus you flick with your finger. The beads click into place right on screen. From basic practice to mental math training, you can keep it all going in one place. The menu is laid out like a dojo. - Abacus practice: flick beads freely on a 13-rod board - Flash anzan: add up numbers that flash one after another - Column addition: work through stacked numbers - Read-aloud: solve along with the spoken calls - Grading exams: take on 10 questions and rank up - Records: track your streak and accuracy on a graph Problems adjust to your level, from beginner up to advanced ranks. Every day of practice stays in your record. No ads. No network. One-time purchase. Available in English and Japanese.