Perform complex calculations with scientific, engineering, and hexadecimal modes. Use RPN and multi-line display. Convert units and access constants. Undo and redo actions. Sync with Apple Watch for on-the-go calculations.
by TLA Systems Ltd.★ 4.7779 ratingsUtilities$9.99Data updated 2026-11-06
Simulate the HP-45 scientific calculator with photo-realistic visuals and animated keys. Perform all original functions and operations. Access a secret timer for 12-hour or 100-hour intervals. Switch to Super-45 mode for enhanced capabilities.
Convert, calculate, simplify, and compare fractions.
The app converts fractions to decimals and vice versa, supports proper and improper fractions, and mixed numbers. It also simplifies and compares fractions, providing step-by-step solutions for calculations.
Convert temperature between Celsius, Fahrenheit, and Kelvin
Convert temperatures between Celsius, Fahrenheit, and Kelvin with instant results. Display formulas for calculations. Save and share conversion results with detailed formulas. Works offline and supports multiple languages.
Calculate with four modes: basic for arithmetic and percentages, scientific for algebra and trigonometry, programming for command line expressions in multiple numerical systems, and minimalist for simplicity.
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 with scientific and engineering notation
Perform scientific and engineering calculations with support for notation like 1E-6 and multipliers such as p, n, u, m, k, M. Edit formulas, recalculate, and view calculation history.
Edit photos and videos with flexible tools. Switch between landscape and portrait modes. Import extended text files. Use unlimited undo and redo functions. Make one-time purchase for lifetime access without subscription fees.
Calculate air properties and track moisture levels
Calculate air properties like temperature, humidity, and dew point. Determine enthalpy and moisture content. Convert between psychrometric units. Visualize air state diagrams. Export data for engineering analysis.
The app allows users to print or email calculation history as a PDF. Users can correct entries with a backspace key and customize display and tape fonts, colors, and sizes.
Perform complex calculations with a scientific featuring parentheses and functions. Convert units across categories like length, weight, and temperature. Calculate percentages, fractions, and exponents. View editable history and switch between modes.
Customize calculators for precise calculations. Create function calculators using AI-generated JavaScript code. Add functions to the list and test them before use. Perform complex computations with formulas.
ElecKit provides tools for calculations. Users can calculate resistor values with 4/5 band codes and tolerance. It includes Ohm’s Law functions for voltage, current, resistance, and power.
Calculate BMI, convert units, track weight changes, and determine ideal body weight. Estimate basic energy needs using Mifflin St. Jeor, Harris-Benedict, and Penn State equations. Adjust for activity, injury, and fever factors.