All the calculators you need in your daily life, in one clean and fast app. No sign-up, no internet connection, no data collection. INCLUDED CALCULATORS - BMI (Body Mass Index) Calculate your BMI by entering your weight and height. See which range you fall into (underweight, normal, overweight, obese) and what your healthy weight range would be. - Loan Payments Calculate the monthly payment for any loan: car, home, or personal. French amortization system with full payment schedule, total paid, and total interest. - Tip Calculator Split the bill among friends with 10%, 15%, 20% or custom tip. See per-person amount, total tip, and grand total. - Percentages Three modes in one: what is X% of a number, what percentage one number is of another, and increase or decrease between two values. - Rule of Three Direct or inverse proportions with a visual grid. Perfect for conversions, scaling, and everyday problems. - Compound Interest Project how your savings or investments grow over time with compound interest. Set initial amount, monthly contribution, annual rate, and time period. WHY THIS APP 100% local: all calculations happen on your iPhone No internet required: works anywhere, anytime No accounts or sign-up No personal data collection No invasive ads Dark mode design, easy on the eyes Clean, distraction-free interface WHO IT'S FOR - Professionals who do daily calculations - Students who need math tools at hand - Anyone who wants essential calculators in one place - People comparing loans, splitting bills, or tracking fitness PRIVACY FIRST Your data never leaves your phone. We don't have servers, we don't have analytics, we don't have ads. Just calculators. Made with care.