MathPro by EtemiDev vs Chartmasters

MathPro is a complete math companion for students in grades 5–12 — and for anyone who wants clear, well-organized mathematics in one place. It brings together 290+ formulas across 12 categories: basics, algebra, geometry, trigonometry, calculus, statistics, sequences and series, vectors, complex numbers, linear algebra, discrete mathematics, and constants. Every formula comes with a clear explanation and step-by-step solved examples. FEATURES 290+ formulas with explanations and worked examples 50 interactive diagrams and graphs Scientific calculator (degrees/radians, trigonometry, logarithms and more) Unit converter for length, mass and temperature Quiz with 120 questions across difficulty levels Dictionary of 350+ math terms 200 math facts 40 mathematical symbols 20 key rules and laws Favorites to save what matters Dark and light mode Available in 14 languages Whether you're preparing for an exam, doing homework, or refreshing key concepts, MathPro keeps everything in one clean, easy-to-use place. Terms of Use (EULA) & Privacy Policy: https://sites.google.com/view/etemidev/privacy-policy-mathpro

CHARTMASTER – THE EXPLORER'S GEOGRAPHY QUIZ Do you know your flags? Your capitals? Can you pinpoint Ulaanbaatar on a map, or recognize the flag of São Tomé and Príncipe? Chartmaster puts your geography knowledge to the ultimate test. FOUR GAME MODES - Flags – Identify the country from its flag - Capitals – Name the capital city of the nation - Map – Tap the correct country on the world map - Landmarks & Cities – Find famous places on the map THREE DIFFICULTY LEVELS Start easy with well-known countries and landmarks, work your way up to medium, or go full hard mode with obscure nations and forgotten capitals that will challenge even the most seasoned traveler. SPEED MATTERS Answer fast, score big. Every correct answer earns up to 1000 points based on how quickly you respond. Maximum score per round: 10 000 points. Beat your personal best and climb the rankings. QUICK DUEL Jump into a Quick Duel and go head-to-head against another explorer. No account needed. No sign-up. Just pure geography knowledge. ALL 195 COUNTRIES Every country in the world is included. From France to Fiji, Norway to Nauru – no country is left behind. 300+ LANDMARKS AND CITIES Test your knowledge of the world's most famous landmarks and cities – from the Eiffel Tower to Göbekli Tepe, from Tokyo to Timbuktu. GEOGUESSR-STYLE MAP FEEDBACK Tap the wrong country? See exactly how far off you were with an animated line showing the distance between your guess and the correct answer. 5 LANGUAGES Play in English, Norwegian, German, French or Spanish. PRIVATE BY DESIGN No account. No ads. No tracking. Everything stays on your device. Just you and the world. DAILY STREAK Come back every day and keep your streak alive. How many days in a row can you explore? Whether you are a geography nerd, a frequent traveler, a student, or just someone who wants to learn more about the world – Chartmaster is for you. Plant your flag. Explore the world.