Boncuk: Flash Anzan Arithmetic
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Description
Numbers flash on screen. Your child adds, subtracts, multiplies, divides in their head. They type the answer. They earn a star.
Boncuk brings the Japanese flash anzan technique to iPhone and iPad for kids ages 7 to 11. It is mental arithmetic practice, not a game with educational filler. A tool with a personality.
WHY FLASH ANZAN
Flash anzan is a Japanese mental calculation method born out of the soroban and abacus tradition. Numbers flash one at a time on the screen. The child captures each number visually and performs the arithmetic in their head. No paper, no pencil, no calculator. Just the child's mind and accelerating numbers.
Five to fifteen minutes a day measurably builds mental calculation speed. This is not a replacement for school math. It is a complement.
HOW IT WORKS
1. Pick a mode: Addition, Subtraction, Multiplication, Division, or Mixed.
2. Numbers flash one at a time at the level's pace.
3. Enter the answer on the keypad.
4. A correct answer earns a star toward three.
Each level has three rounds. Each round earns one star. Replay any level to chase the third star. As you advance, numbers flash faster and more of them appear.
PRACTICE MODES
Quick Addition
Quick Subtraction
Quick Multiplication
Quick Division
Mixed mode, unlocks after 60 stars
100 levels per mode. 500 sessions total.
DESIGNED FOR KIDS
No ads
No third-party tracking
No third-party analytics SDKs
No social features, chat, user-generated content
No streak guilt, no penalty for taking a day off
No slot machine combos, jackpots, or coin shower animations
Purchase, settings, and progress reset are behind a parent gate
ACCESSIBILITY
Universal app for iPhone and iPad
Turkish and English
Full VoiceOver support
Dynamic Type for larger text
Reduced Motion respected
iCloud sync across devices
PREMIUM
The first 10 levels in every mode are free. That is 50 free sessions to start. Premium unlocks all 500 levels and the Mixed mode.
Weekly subscription with a 3-day free trial, then auto-renews at the local weekly price shown in the app.
Lifetime: one-time purchase, no recurring charges.
Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store account settings after purchase. Any unused portion of the free trial period will be forfeited when the user purchases a subscription.
PRIVACY
Boncuk does not collect personal information from your child. Practice progress is stored on your device and synced through your iCloud account if available. No ads, no third-party analytics.
Privacy Policy: https://boncuk.creativefactory.tr/en/privacy
Terms of Use: https://boncuk.creativefactory.tr/en/terms
Contact: [email protected]