Mental Math vs Army Officer Selection Prep

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

Army Officer Selection Prep is an unofficial study app for Army Officer Selection Board (AOSB) preparation — verbal, numerical and abstract reasoning, planning exercise practice, leadership and command-task theory, service knowledge, current affairs awareness, written briefing structure and fitness standards theory. IMPORTANT: Full access requires an In-App Purchase (auto-renewable subscription or lifetime). The download is free; practice content unlocks after purchase. Restore Purchases is always available on the paywall and in Settings. WHAT YOU GET • 2,100+ unique multiple-choice questions with explanations — verbal, numerical and abstract reasoning, planning exercise maths, service knowledge, military history, current affairs and board skills • Verbal reasoning passages in the True / False / Cannot Say format • Timed reasoning-style mocks (40 questions · 30 minutes) • 14 planning exercise scenarios with worked solutions • 18 study guides: the selection pathway, Briefing, Main Board, reasoning toolkits, PlanEx method, command tasks, lecturette and essay, interview prep, Army values, ranks and structure, history, current affairs, map reading and fitness • Glossary of military terms and a recommended reading list • Quick practice, practice-by-component and weak-area drills • Review incorrect answers and bookmarks • Flashcards with spaced repetition • Progress dashboard: readiness %, mastery, streak, board countdown • Works fully offline — no account required WHO IT'S FOR Candidates preparing for AOSB Briefing and Main Board themes. Practise psychometric-style reasoning, PlanEx structure, leadership theory, service knowledge and calm boardcraft — with clear feedback after every answer. COMPLIANCE & DISCLAIMER Independent, unofficial study aid by MD Shahariar Nazim Joy. Not affiliated with, endorsed by, or connected to the British Army, the Ministry of Defence, AOSB Westbury, or Royal Military Academy Sandhurst. All questions are original study material written for this app. Practising here does not guarantee selection or a place at Sandhurst. Always follow official joining guidance on army.mod.uk. SUBSCRIPTIONS (USD) • Monthly Premium — $6.99 / month • Yearly Premium — $19.99 / year (best value) • Lifetime Access — $29.99 one-time Payment is charged to your Apple Account. Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage in App Store account settings. Privacy Policy: https://joykhansayan1.github.io/army-officer-selection-prep/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://joykhansayan1.github.io/army-officer-selection-prep/support.html