Jisu Calculator

Jisu Calculator is an ad-free all-in-one calculator built for everyday numbers. It combines a clean basic calculator, history tape, unit conversion, tip and bill splitting, BMI estimates, and Home Screen widgets in one focused paid app. Key features: - Basic calculator with large results, a comfortable keypad, and history directly below the input area. - History tape for saved expressions, results, notes, and search. - Home Screen widget for quick calculations without opening the app. - Unit converter for length, weight, volume, temperature, area, speed, currency, and China-local units such as jin, mu, and chi. - Tip calculator and bill splitting for travel, dining, and group payments. - BMI estimates with metric/imperial inputs and Asian BMI reference ranges. - System appearance support for iOS light and dark mode. Jisu has no ads, no subscriptions, and no noisy popups. Pay once and calculate in peace.