Is a that allows editing of mathematical expressions with instant results. It syncs calculation history across devices. Purchasing + adds unit conversion, history tools, fractions, and more.
by Oleg Barinov★ 4.9381 ratingsUtilitiesFreeData updated 2026-09-15
The app provides two calculators: one using Standard Notation and another using Reverse Polish Notation. Both calculators are programmable and include finance and scientific functions, plus 45 physical constants.
Perform basic arithmetic operations, calculate percentages, and convert units. Save frequently used equations. Use scientific functions for advanced calculations. Share results via copy and paste.
Calculate quotes and estimates with instant, real-time results. Input numbers and formulas for quick computations. Store and retrieve previous calculations. Adjust margins and taxes directly. Export results in multiple formats.
Convert to kilometers and kilometers to with instant, precise calculations. Save conversion history and switch between dark and light themes. Works offline and features a clean, user-friendly interface.
Calculate physical quantities using formulas for force, work, power, energy, acceleration, and motion. Input values to solve for unknowns. Track units and view step-by-step solutions. Sync results with other devices.
Convert units across categories like area, length, and temperature. Switch between metric and imperial systems. Calculate fuel efficiency and convert data between bits and bytes. Sync with Apple devices for seamless use.
Calculate pump output, MASP, GOR, and tank strapping with unit selectors and input validation. Access Drilling, Production, Reservoir, and Terminal/Trading modules. Retrieve step-by-step formulas, unit conversions, and context summaries.