Apps Like Calculator 4.0 for iPhone and iPad
Calculate, edit, and correct numbers
Perform calculations with decimal points or commas. Correct entries using a backspace key. View calculation history in a display log. Switch between light and dark themes. Receive regular updates with new features.
Calculator 4.0 screenshots
Ranked alternatives
Showing 521–540 of 1,000 ranked alternatives.



RPNPro
Felix Meier
Calculator for software engineers using RPN.
The app uses RPN (Reverse Polish Notation) as an input scheme. It is based on a four level stack model featuring X, Y, Z, and T registers.




Pipe Working Pressure Calc
Tan Chia Ling
Calculate , thickness, and diameter
Calculate fluid , wall thickness, and outside diameter using Barlow's Formula. Input values in various units and copy results to other apps. Includes formulas for reference and supports up to 16 decimal places.


Coordinate Calculator Ultra
丽丽 许
Calculate coordinates and convert projections
Calculate distances using Haversine and Vincenty algorithms. Convert coordinates between formats. Perform azimuth and elevation calculations. Export results in various formats. Sync with GPS devices for real-time data.

Bill Tipper
Montiel Mobile, LLC
Split bills, calculate tips, apply discounts
Split restaurant bills by number of people. Calculate tips, discounts, and sales tax. Adjust tip amounts based on tax. Customize background color. Share results via email or messaging.

15C Scientific Calculator
Vicinno Soft LLC
Calculate with precise RPN math
Emulates HP 15C RPN functionality with precise mathematical calculations. Users can solve equations, perform numerical integration, handle complex numbers, and execute matrix operations. It supports root finding and hyperbolic functions.



TankMix
Corteva, Inc.
Calculate product, water, and tank needs
Calculate product quantities for field areas or tank sizes. Determine water needed for treatment. Adjust Volume to Volume ratios. Select from various units of measure. Input data manually or via device sensors.




RetroCalc - Calculator
Nimmi Patel
Calculate, edit, and save equations
Calculate complex equations with a clean, intuitive interface that supports multiple input methods. Perform unit conversions, graph functions, and save calculation history. Access scientific formulas and use a dark mode for better visibility.


How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.