Apps Like Essential Calculator for iPhone and iPad
Solve equations with one tap
Solve mathematical equations with a minimalist interface. Input expressions using a basic layout. View results instantly on iPhone or iPod touch. No additional features or complexity.
by Jonathan Sutter★ 4.08 ratingsUtilitiesFreeData updated 2026-09-11
The app solves systems of algebraic and differential equations using natural language input. It can generate results as tables, graphs, and animations, with support for multiple documents and unlimited undo.
Solve problems by taking photos. View detailed solving steps. Perform addition, subtraction, division, and multiplication. Support 12 significant digits. Switch between landscape and portrait mode. No ads.
Calculate circuits, convert units, test experiments
Solve electrical problems by calculating voltage, current, and resistance. Input values to determine unknown variables. Perform unit conversions and conduct experiments. Store and retrieve calculation results.
Calculate final grades by inputting current scores and weight. Determine required score for a target grade. Adjust value and view calculated results instantly. Support for Retina displays and 64-bit devices.
Perform complex calculations with functions and formula support. Use speech to input and receive answers, with full VoiceOver compatibility. Adjust button size and color for better visibility. Access high contrast mode for improved readability.
Convert units between and imperial systems. Switch between weight, length, temperature, and area measurements. Input values and receive instant conversions. Share results via copy or email.
Calculate age in years, months, and days. Input birthdate to see real-time results. Adjust date format and display preferences. Works across all device types. No additional features provided.
Calculate dew with temperature and humidity inputs
Calculate dew temperature using air temperature and relative humidity. Convert results to Kelvin, Celsius, or Fahrenheit. Input values manually for accurate calculations.
Calculate cooling requirements for based on temperature and humidity targets. Input facility size and regional climate . Estimate airflow and cooling capacity needs. Generate reports for system selection and maintenance planning.
Perform calculations with a spreadsheet-like interface. Enter and edit formulas with an intuitive keypad. Adjust values to meet goals. Compare different calculation scenarios. Share results easily. Ideal for business and everyday math tasks.
Calculate fluid rates and pressure loss in pipes. Determine diameter or maximum length based on rate and pressure drop. Find friction loss and rate using built-in formulas. Input dimensions and fluid properties for accurate results.
Perform basic arithmetic operations, including addition, subtraction, multiplication, and division. Use parentheses for complex calculations. Switch between light and dark themes for better visibility.
Calculate percentages for various problems. Solve for unknowns in equations like Y = P% x X. Determine increase or decrease. Input values and receive step-by-step results.
The app provides basic arithmetic calculations with a two-line display and a paper tape. It shows the calculation formula and its result simultaneously, featuring large buttons for ease of use.
Calculates with multiple modes and customizable settings
The app provides multiple calculation modes for various mathematical tasks. The app includes customizable interfaces and widgets for convenient use across devices.
Plus provides arithmetic and scientific calculations with live expression preview and error detection. Perform operations in exact form, fractions, and scientific notation. Switch between standard and scientific modes. Share results directly.
Calculate earnings for hourly, daily, weekly, bi-weekly, semi-monthly, quarterly, and yearly periods. Input fixed income and estimated working time to receive accurate results. Track progress over time and adjust inputs for updated calculations.
Perform percentage calculations for tax and discounts. Execute constant calculations with Casio-style formatting. Handle exponentiation and advanced mathematical functions. Store and recall previous results. Switch between basic and scientific modes.