Mental Math vs MathMind

10 minutes a day to keep your mental math sharp. Whether you're in middle school, in high school, or an adult who wants to reconnect with math, Kalc helps you forge solid mental reflexes, without cramming. Spaced repetition system (SRS): concepts you master space out over time, the ones you miss come back the next day. The method known to deliver the most learning per minute practiced. WHO IT'S FOR · UK students (Year 7-10), US students (Grade 6-9) · Other English-speaking systems (Canada, Australia, Ireland, NZ) · Spanish-speaking students (Spain ESO, Mexico secundaria/preparatoria) · French-speaking students (France, Belgium, Switzerland, Quebec) · Adults who want to get back fluency with mental math Each user picks their school system during onboarding. Content and examples adapt. WHAT KALC COVERS · Multiplication and division (times tables, decimals, signed) · Fractions (simplification, operations, fraction of a whole) · Percentages (calculation, increase, discount, compound change) · Powers and square roots · Algebra and order of operations · Addition and subtraction of signed integers TWO PRACTICE MODES · Zen mode: at your own pace, no pressure, to consolidate the basics · Chrono mode: against the clock, to build speed under exam conditions VISIBLE PROGRESS Every skill has its own level and progress bar. You see exactly where you stand and what's left to master. IN REAL LIFE Every session ends with a concrete example of how this skill serves you day to day: splitting a restaurant tab, reading a paycheck, working out a discount, planning a budget. Mental math is something you actually use. HOME SCREEN WIDGETS Track your progress straight from your iOS home screen, without opening the app. Streak, XP and skills in progress at a glance. MEASURED REMINDERS Up to 5 reminders over the first 3 weeks, off at any time. No spam, no guilt-tripping. ONE-TIME PURCHASE, NO SUBSCRIPTION Kalc is free to download (1 skill available without purchase). Full access unlocks with a single purchase (lifetime or 1 year non-renewing). No traps, no hidden paywall. PRIVACY All your data stays on your device and syncs through your personal iCloud account. No ads, no advertising tracking, no cookies. Kalc is for people who want real progress in mental math. Privacy policy: https://lmtdigitalcreations.com/kalc/privacy.html Terms of use: https://lmtdigitalcreations.com/kalc/terms.html

MathMind turns math practice into short, playful rounds. Instead of long study sessions, every round takes a few minutes and ends with stars. Those stars unlock avatars, fill collections and keep a weekly streak alive — so practice becomes a habit rather than a chore. WHAT'S INSIDE Adventure — 120 levels across addition, subtraction, multiplication and division, each with easy, medium and hard steps. Practice — a quick ten-question round whenever there are a few minutes to spare. Time Trial — thirty seconds on the clock. Every correct answer adds time, every wrong one takes it away. Fast, tense and surprisingly addictive. Mini Games — three puzzles that train different muscles. Math Memory is a matching game with illustrated numbers. Path Finder asks a route across a number grid. Number Chain builds calculation chains. Every puzzle is generated solution-first, so there is never an unsolvable board. Daily Tasks — five short tasks each day. Finish them all and earn a bonus, then watch the weekly streak grow. Collections — forty illustrated numbers to discover and collect through Math Memory. The app works completely offline, so it is just as useful on a plane or in the car as it is at home. Sound, vibration and animation can each be turned off separately. Game sound never interrupts your music and respects the silent switch. The layout adapts to iPhone and iPad alike.