eCalculator - Enhanced Edition2.2 - App Store

Designed to take the original calculator to the next level with simplicity and functionality.

This app features all basic and scientifc calculation from the original calculator with more advanced functions like history, calculation equation, scientific mode in portrait, calculation on the widget, themes, and keyboard input.

Unlock the power of binary, octal, decimal, and hexadecimal math with Programmer Calculator.

Solve fraction math problem quickly and easily with fraction calculator.

Includes international currency conversion and variety of units conversion categories.

Tip calculator to calculate tip percentage for food and drink on the fly.
Save time when use bill splitter, and tip exactly what you mean to, no more, no less.

BASIC/SCIENTIFIC CALCULATOR
. All functions like the original calculator app
. Basic calculation in portrait
. Scientific calculation in both portrait and landscape
. Access result and do calculation on widget
. Switch between Degrees and Radians calculations
. Make more complex calculations with Memory buttons
. Simply swipe on the digits to delete a single wrong digit

UNIT CONVERTER
. Currency converter with daily updated exchange rates in the universal currency
. Freely convert units from variety of categories
. All catalogs in converter include: Currency, Area, Data, Length, Weight, Velocity, Temperature, Time, Volume, Acceleration, Angle, Current, Energy, Force, Illumination, Inductance, Magnitude, Power, Pressure, Radiation and Torque

FRACTION CALCULATOR
. Built-in fraction calculator to solve fraction math
. Display result in proper fraction, improper fraction or decimal number

PROGRAMMER CALCULATOR
. Multi-base calculations with seamlessly switch between binary, octal, decimal and hexadecimal
. Perform arithmetic and logical operations
. Directly view and manipulate the individual bits of the binary number with built-in Bit Editor

TIP CALCULATOR
. Calculate tip of bill on the fly
. Split the bill to share with others
. Simply swipe to round any number of total, tip, or per person
. Built-in share function to easily share the number

SIMPLICITY
. Check previous calculation with history
. View whole equation during calculation
. Copy and paste numbers from or into display
. Support external hardware keyboard input
. Quickly launch different modes with home screen quick action

INTERFACE
. Get new feel of different looks with multiple themes
. Buttons feedback sound and haptic to ensure you touch the buttons correctly

NOTES:
. To add widget in iOS 14 or later, scroll to the bottom of the widget list, tap Edit, tap Customize, add Calculator widget, and tap Done.

Version History • New way to do calculation with the new widget
- Bugs fix and performance improvement 2.2 Jun 21 - Bugs fix and performance improvement 2.1.1 Jun 6 • Optimized for iOS 26
• Added most of the world's currencies for Unit Converter 2.1 Jan 30 • New: Programmer Calculator with built-in Bit Editor

- Bug fixed related to +/- sign in Unit Converter 2.0 09/08/2025 • Optimized for iOS 18
• Adjustable decimal place in Unit Converter
- Bug fixed related with +/- sign after operator 1.8 02/08/2025 This update contains bug fixes and performance improvements. 1.7.3 05/29/2024 - Bug fixed where sometimes small value numbers display in scientific format 1.7.2 04/07/2024 - Bugs fixing and performance improvement 1.7.1 04/01/2024 • New theme: Pinky
• Improved formatted number when recall from memory button
• Improved history record with various buttons

- Bugs fixing and performance improvement 1.7 02/15/2024 • Added Google CMP options for the EEA and UK users

- Bug fixed where fraction history does not clear after confirm to clear all 1.6.1 01/16/2024 • More colors customization for several more different skins
• Improved main calculator app and widget's UI
• Added more keyboard shortcuts for external keyboard 1.6 09/21/2023 • Faster tip calculation input when launch

- Bug fixed where buttons π and e input incorrect decimal value when locale use comma as decimal
- Bug fixed where button dot and history shows incorrect decimal value when locale use comma as decimal
- Bug fixed where sometimes app crash after tap left bracket button, then tap any operator button
- Bug fixed where current value is not retain after input left bracket
- Bug fixed related with various locales, which use comma as decimal, in Unit Converter and Tip Calculator
- Bug fixed related with calculator widget's button color
- Bug fixed where some skins bitmap do not render in high quality 1.5.5 07/18/2023 - Bug fixed related with input number after decimal in Tip Calculator 1.5.1 09/23/2022 • New Tip Calculator to calculate tip percentage for food and drink on the fly
• Improve app shortcut to different functions
• Improved app performance and responsiveness when update currency data

- Bug fixed with swipe to erase gestures in Converter
- Bug fixed related with numbers after decimal input
- Bug fixed related with skin preview in in-app settings 1.5 03/14/2022 • Add home screen quick actions to quickly launch Fraction Calculator or Unit Converter
• Improved app performance 1.1 12/13/2021 1.0 12/12/2021