SciCalc Pro vs Chartmasters

Meet SciCalc Pro—a fast, precise scientific calculator built for real work. From everyday math to university-level statistics, it delivers pro-grade results with a clean interface, history, and a searchable in-app user guide. Why you’ll love it Accurate results you can trust High-precision math with careful numerics under the hood. Advanced statistics & probability PDFs, CDFs, and inverse CDFs (quantiles) for Normal, t, χ², F, Binomial, Poisson, Negative Binomial, and Hypergeometric. Built-in regression tools Linear, quadratic, logarithmic, and exponential fits with r and r². Complex numbers made easy cis(θ), rectangular/polar forms, conjugate, argument, and formatting. Clear modes & syntax Degrees/radians, scientific notation (EE), powers/roots, logs, and more. History & user guide Review previous calculations and search the integrated manual for functions, examples, and tips. Thoughtful percent behavior Intuitive operations for add/subtract/multiply/divide by percent. Key functions (non-exhaustive) Core math: sin, cos, tan, asin, acos, atan, sqrt, abs, exp, ln, log10, powers x^y Statistics: mean, variance, standard deviation, regressions (linear, quadratic, logarithmic, exponential) Distributions: Normal, Student’s t, Chi-Square, F, Binomial, Poisson, Negative Binomial, Hypergeometric with PDF/CDF/Inv Whether you’re studying, engineering, teaching, or double-checking a dataset, SciCalc Pro gives you the precision and control you need—without the clutter.

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.