Calculator Pro - Professional

About Professional Calculator helps you evaluate expressions quickly, review a tape-style history, and build reusable formulas with optional exchange-rate context. Display and sound can be tuned to your habits. Data stays on your device. Calculate • Familiar operators and parentheses for chained calculations • A tape area shows recent entries near your input • You can hide the keypad for more reading space History • Successful "=" runs can be saved locally for review (behavior as implemented in the app) • Tape layouts: default, result-only, or full view • Batch select/delete and selection sum • Copy expression or result; optional tags for organization • Create a formula template from a history entry (as supported in-app) Formulas • Compose calculations with blocks for easier edits and reuse • Pick base/quote currencies and refresh a reference rate (Frankfurter public API) • Inject the rate into a number block; save and manage templates Settings • Optional key tap sound (may be silent in silent mode) • Decimal places, thousands grouping, and theme (system/dark/light) Important Rates are third-party public data for reference only—not investment advice. Use your bank or official channels for trading decisions. Privacy & data History and related data are stored locally on device by default. Features are as shown in the app; if a Privacy Policy is provided, it prevails for legal details.