Boncuk vs Abacus Trainer

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: hi@creativefactory.tr

Train your brain to calculate without a calculator. Abacus Trainer teaches mental arithmetic the Japanese soroban way - slide real beads first, then learn to see the abacus in your head. 160 levels across 8 grades take you from your very first bead to full Flash Anzan speed, one small step at a time. THREE WAYS TO PRACTICE - Show All: every number on screen at once. The gentle way in. - Flash Anzan: numbers flash one by one and get faster each level. Builds working memory, focus and calculation speed. - Auditory Anzan: nothing to read. Numbers are spoken aloud and you calculate purely by ear. INTERACTIVE VIRTUAL SOROBAN Slide the beads with your finger on a real 5-bead soroban. Guide markers show what each rod is worth, and a free sandbox lets you build any number you like. Answer on the abacus itself or on the keypad - whichever trains you better. A CURRICULUM THAT ACTUALLY RAMPS - Addition first, subtraction from Grade 2, decimals from Grade 7. - Number chains grow from 3 numbers up to 12; values from 1 digit to 3. - Flash speed tightens from 2.0 seconds down to 0.4 seconds per number. Every level is at least as hard as the one before it, so there are no difficulty cliffs - just steady progress. BUILD YOUR OWN DRILL Custom Mode lets you set everything: addition and subtraction, multiplication or division, number of digits, rows, question count, flash speed, negatives and decimals. Ideal for competition prep or for drilling the one thing you keep getting wrong. ANSWER OUT LOUD Speak your answer instead of typing it for hands-free speed drills. Microphone access is optional and only used while you are answering. PROGRESS YOU CAN SEE Accuracy, answer times, questions answered, best runs and unlocked badges - per grade and over time. Watch your average answer time drop week after week. COLLECT COMPANION CATS Level up to unlock and customise your own cat companion. Cozy, calm visuals with a dark theme make long practice sessions easy on the eyes, and the whole app stays suitable for all ages. WHO IT IS FOR Kids starting soroban or abacus class. Students training for mental arithmetic and speed-math competitions. Parents looking for screen time that actually teaches something. Adults who want to keep their brain sharp and add faster than they can reach for a phone. Practice runs offline, so a train ride or a waiting room is a training session. Free to download, supported by ads. One optional purchase removes the ads for good - every level, every mode and every cat is there either way, and nothing is locked behind a payment. Available in English and Indonesian. Download Abacus Trainer and start seeing the beads in your head.