Supported Features
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
Abaco - Flash Mental Math
Fast & Easy Mental Math Drill
$2.99
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!
Ratings & Reviews
- Updated answer font options with predictable numeric fonts.
- Removed the System font option; older selections now safely use Gamja Flower.
The developer, Jiwon Park, 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.
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Jiwon Park
- Size
- 43 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 10.15 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 34 more
- English, Arabic, Burmese, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Uzbek, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2025 Kobbokkom Company
