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
Scientific calculator displays full equations in a single line with a clear button and history review. Inputs follow standard reading order, allowing expressions like "sen(PI/2)" without needing to press "sen" separately.
Calculate kVA, kW, Amps, Volts, and Power Factor using single or three-phase formulas. Input two values to determine the third. Convert between kVA, kW, and Amps. Supports UPS, generator, and transformer calculations.
The app presents a minimalist watch with a calendar for iPhone, iPad, and iPod touch. It displays the time and date with a background color animation, supporting all operating system languages.
Perform complex calculations with high-precision math functions including trigonometric, hyperbolic, and special functions. Calculate derivatives, integrals, and roots. Program custom functions and store equations.
Perform calculations with real-time results and visible input process. Use scientific and fraction modes. Adjust decimal places and show/hide separators. Access unlimited history. Quick start with backspace and keyboard vibration or sound.
The app offers a fast, clean RPN calculator with live function graphs. Users can enter calculations using RPN and instantly plot expressions with X as a variable.
The app presents a typewriter interface on an iPhone or iPod Touch. Users can manage documents, email content as text or images, and utilize features like a backspace key and external keyboard support.
Write memos and perform calculations in a single interface. Enter arithmetic expressions for automatic computation. Use line breaks to create parentheses. Long-press lines to rearrange them.
Calculate determinants for 2x2, 3x3, and NxN square matrices. Input entries manually or via file. Use built-in algorithms to compute results. Display final value clearly.
Solve problems with step-by-step explanations. Handle algebra, geometry, trigonometry, and calculus. Input equations or scan handwritten problems. Get instant solutions and detailed breakdowns. Sync across devices for continued learning.
Calculate measurement errors using directivity and mismatch error tools. Convert ratios to decibels. Compute noise figures and antenna parameters. Input values and retrieve calculated results.
Perform continuous arithmetic operations with a clean interface. Add, subtract, multiply, or divide numbers sequentially. Clear entries and view results instantly without needing to restart calculations.
The app offers a large number pad and result display for performing basic calculations. Users can add, subtract, multiply, divide, and calculate percentages.