HSK Edge vs Mental Math Tricks

HSK Edge — your all‑in‑one HSK study companion. HSK Edge delivers a complete HSK‑levelled dictionary with 110,000+ entries including pronunciation, animated stroke order, definitions and example sentences. Features include one‑tap pinyin conversion, a phoneme matrix for listening practice, smart flashcards with spaced repetition, mock tests and personalised study plans. Download content for offline study and track your progress with clear visual metrics. Key Features Authoritative Dictionary: 110k+ entries with native audio, stroke order animations, clear definitions and examples. Pinyin Conversion: Convert Chinese text to pinyin with tone marks; handles polyphones. Phoneme Matrix: Tap any initial/final to hear pronunciation and copy pinyin. Smart Flashcards: Spaced repetition algorithm prioritises weak words and new vocabulary. Mock Tests & Progress: Realistic practice tests, score tracking and visual progress dashboards. Offline Mode: Download dictionaries and decks for study without internet. Subscription Details HSK Edge offers auto‑renewable subscriptions to unlock all decks, advanced drills and premium features. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your account settings. Trial periods (if offered) will convert to paid subscriptions unless cancelled. Privacy and Support We respect your privacy. Data collected is used to improve learning outcomes and personalise your experience. See the privacy policy and terms of service on the App Store listing or within the app. For support, use the in‑app feedback or contact details on our store page.

MathMind teaches you real mental math techniques - not gimmicks, not drills you'll forget tomorrow. Learn the same shortcuts used by mathematicians, chess players, and memory athletes to calculate faster than a calculator. 30 PROVEN TRICKS, 7 CATEGORIES: Master techniques across every major area of mental arithmetic: - Multiplication: square numbers ending in 5, multiply by 11, multiply two-digit numbers instantly - Division: divisibility rules, divide by 5, divide by 25 - Squares and roots: square any two-digit number, estimate square roots - Percentages: the percentage flip trick, tips in seconds, compound growth - Fractions: convert, compare, and calculate - Addition and subtraction: round-and-adjust, left-to-right addition - Advanced: day of the week for any date, digit sums, cube estimation THREE WAYS TO LEARN: LEARN - Each trick has a clear explanation, worked examples with step-by-step walkthroughs, and a "Why does this work?" section that shows the underlying math. PRACTICE - Drill any trick with infinite auto-generated problems. Track your accuracy, streak, and solve time as you improve. CHALLENGE - Timed tests across all tricks you've learned. Compete against your own best. Take the Daily Challenge - the same problems for everyone, every day. BUILT FOR REAL PROGRESS: - Speed graphs: watch your solve time drop week by week - Day streaks: build a consistent practice habit - Category breakdown: see exactly where you're strong and where to focus - Combo multipliers: chain correct answers for bonus scoring - Haptic feedback and smooth animations HONEST PRICING: MathMind is free to download with 5 foundational tricks unlocked. Unlock all 30 tricks with a single one-time purchase - no subscriptions, no ads, no data collection, ever. PRIVACY FIRST: Your progress stays on your device. MathMind has no accounts, no sign-ups, no analytics, no trackers, no ads. Nothing leaves your phone, unless you manually share it. Whether you're a student preparing for exams, a professional who wants to run mental calculations in meetings, or just someone who enjoys training their brain - MathMind gives you the tools to think faster. Download and start learning in seconds!