Manipulatives vs LetAbacus

Turn abstract math into something learners can see, touch, and understand—without storing bins of classroom supplies. Manipulatives gives families, homeschool educators, and teachers a polished collection of virtual math tools for lessons, homework, demonstrations, and open-ended exploration. No accounts, ads, or distracting game mechanics—just responsive manipulatives ready whenever you need to make the math visible. BUILD NUMBER SENSE - Math Bars - Hundred Chart - Ten Frames - Rekenrek - Linking Cubes - Two-Color Counters EXPLORE FRACTIONS AND GEOMETRY - Fraction Tiles - Pattern Blocks - Tangrams - Geoboard - Shape Builder MORE TOOLS FOR EVERYDAY LESSONS Explore probability, time, money, temperature, drawing, and more with focused interactive tools. DESIGNED FOR TEACHING - Move, group, rotate, snap, draw, and reset with touch-first controls - Use each tool with your own lesson—there is no required curriculum or fixed path - Return to your work later—each tool keeps its most recent setup on your device - Built for iPhone and iPad TRY FIVE TOOLS FREE Math Bars, Hundred Chart, Ten Frames, Dice Roller, and Clock are included free. Monthly and annual Manipulatives Pro subscriptions unlock the complete library, with a 7-day free trial for eligible new subscribers. Prefer to pay once? The separate lifetime purchase unlocks Pro permanently with no renewal. PRIVATE BY DESIGN No account. No advertising. No analytics or third-party tracking. Lesson work stays on your device. A parent or guardian can optionally send support feedback and add an email address if they want a reply. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. The lifetime option is a non-consumable purchase and does not renew. Manage subscriptions in Apple Account settings and restore purchases in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://manipulatives.app/privacy

A soroban (Japanese abacus) app that parents can safely hand to young kids. There is almost no text on screen — kids learn through animated demos, glowing beads and cheerful voice encouragement. Mistakes never get a big red X, just a friendly "try again!". ‧ A real-feel virtual abacus: multi-touch beads with a satisfying wooden click. ‧ Lesson mode: 19 units, 50 lessons — from meeting the abacus and simple add & subtract, through friends-of-5, friends-of-10, mixed complements, a place-value dojo, running sums, first multiplication and division and a four-ops cup, on to formal soroban multiplication and division with proper rod positioning — remainders, two-digit divisors and decimals included. Every lesson in three steps — watch, follow the glowing beads, then try it yourself for three stars. ‧ Understand first, then flick: before each complement unit, kids play a picture puzzle — "how many more to make 5 (or 10)?" — and after the lesson they solve it again with brand-new numbers, proving they truly got the idea. ‧ Mental math ladder: on the board, then flash, then air flick (invisible beads, real flicks), then pure mental math — moving the abacus into your child's head one step at a time. ‧ Sense Island: count at a glance, how-many-more to 5 and 10, which side has more, and peek-and-rebuild bead memory — number sense before numerals. ‧ Visual drills and Arena mode: difficulty follows your child's lesson progress, or pick your own level, earn points, and re-practice tricky ones. ‧ Listening drills at your child's pace: the app calls one term ("five"), waits until the beads really show 5, then calls the next ("plus three"). Three paces (slow / medium / fast), with one replay if missed. ‧ Big Review boss: mixed practice of everything learned, with a help-me button. ‧ Three little daily quests with a streak flame, plus a badge wall of silver and gold badges. ‧ Bead skins to collect: wooden, candy, starry night, dino, neon and more — 10 skins, all unlocked by practicing — never bought with money. ‧ Voice encouragement in both English and Traditional Chinese. ‧ A parent zone behind a parental gate: insight cards, a "5 minutes today" suggestion, a learning snapshot export, language and pace settings. Our promise: completely free, no ads, no tracking, no data collection. All learning content and progress work fully offline. An optional tip jar (buy the developer a coffee) lives behind the parental gate, is handled by Apple, is unreachable by children, and unlocks nothing.