百Math vs Math Rivals

When did you last do mental math without reaching for your phone? 百Math was built by an engineer who realized he had become too dependent on calculators and AI to do even simple arithmetic. This app is his answer — and maybe yours too. Trusted by users for 5 years, 百Math is a no-frills 100-problem calculation trainer. Solve all 100 as fast as you can, track your progress, and compete on the global leaderboard. 【Key Features】 ・4 Modes: Addition, Subtraction, Multiplication, and Division ・Schulte Table — a visual search game that sharpens your peripheral vision and focus ・Gorbov Table — an advanced Schulte Table rule where you alternate between ascending red numbers and descending black numbers ・Flash Calculation — a new mode that trains your instant recall ・Ghost Race — compete against your personal best ・Heatmap to spot your weak spots ・Clean, distraction-free design ・Global ranking system ・Streak counter, average time, and time chart to track improvement ・Home screen widget for quick access

Math Rivals turns daily math practice into friendly competition. Built for elementary and middle schoolers, it combines quick drills, weekly leaderboards, and hands-on visual tools that make tough concepts click. START WITH A 7-DAY FREE TRIAL Try every feature free for a week. Then just $0.99/month or $4.99/year. No ads, ever. FIVE CORE TOPICS · 54 LEVELS Carefully sequenced levels that build real skills: • Addition (12 levels) — single digits to 4-digit problems with carrying • Subtraction (12 levels) — basics through borrowing across zeros • Multiplication (10 levels) — times tables to multi-digit multiplication • Division (10 levels) — division facts through long division • Fractions (10 levels) — identify, compare, simplify, and add Each level introduces one new concept, so kids never feel overwhelmed. COMPETITION TAB — PLAY TO WIN Pick a topic and race for a spot on the weekly leaderboard. Speed and accuracy both count. PRACTICE TAB — ORGANIZED BY SUBJECT Basic Math: Addition · Subtraction · Multiplication · Division. Timed drills in 60-second or 120-second sprints to build speed and accuracy. Fractions Toolkit: • Pizza Fractions — visual lessons that make fractions click • LCD Explorer — make slices the same size so fractions can be added • Pizza Explorer — tap and drag to discover percents and equivalencies • Fractions Drill — timed add/subtract practice • Pizza Drill — visual fraction challenges with helpful inline hints Geometry: • Angle Explorer — interactive protractor for learning angles and degrees STANDARD ALGORITHM PRACTICE Math Rivals teaches the same column math methods used in school. Kids work through addition, subtraction, multiplication, and long division step-by-step in a visual interface — with an optional guided mode that walks through every carry, borrow, and partial product. HINTS WHEN KIDS NEED THEM On fraction problems, simple inline hints explain what the numerator and denominator mean as kids fill them in — guiding without giving away the answer. WEEKLY LEADERBOARDS Leaderboards reset every Sunday, so there's always a fresh chance to be #1. Filter rankings by topic, difficulty, and drill mode. Top finishers earn certificates: • Gold — Champion • Silver — Runner-Up • Bronze — Third Place Check the Hall of Fame for players with the most lifetime weekly wins. EARN STARS, COINS & ACHIEVEMENTS • 3-star rating on every level based on accuracy and speed • Coins earned for every correct answer • 14 achievement badges to unlock (First Star, Week Warrior, Speed Demon, Topic Expert, and more) • Daily streak tracking to build consistent habits TRACK PROGRESS AT A GLANCE The Progress tab shows your total stars, coins, and best streak — plus a quick link to leaderboards and your personal drill records sorted by performance. DESIGNED FOR KIDS • Bright, topic-colored interface (green addition, blue subtraction, purple multiplication, orange division, red fractions, teal geometry) • Sound effects and haptic feedback for correct and incorrect answers • Celebration screens when levels are completed • Encouraging feedback throughout SAFE & PRIVATE • No account required • No third-party analytics or tracking • Leaderboards use anonymous iCloud IDs • Optional: add a screen name and school for leaderboard display • Works offline — leaderboards sync when connected Perfect for homework practice, summer review, or just getting ahead. Whether your child is learning their times tables, tackling long division, or making sense of fractions for the first time, Math Rivals grows with them. Privacy Policy: https://drmcgill2126.github.io/michaelmcgillapps/privacy.html Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/