Calculator HD Pro

Calculator HD Pro

iOS Universal Utilities

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This is THE BEST calculator for iPhone, iPad and iPod touch!

• Dual-line display - shows the input and result at the same time
• History tape - saves every calculation, time and date stamped
• Memory buttons - shows its value on the display
• Percentage and backspace button
• Scientific functions
• 6 layouts (3 in portrait, 3 in landscape)
• 6 color themes
• Multi-line input for really long equations
• Automatic scientific formatting
• Label any calculation in the history tape
• E-mail a calculation or the entire history tape
• 3D Touch
• VoiceOver accessibility
• iOS 9 Split View


• Swipe down to see the history tape
• Swipe left or right on the keypad to switch between basic and scientific keys
• Swipe left on the display to backspace
• Swipe right on the display to clear
• Tap & hold on the result to copy
• Tap & hold on the input to move the cursor, copy, paste, convert to E-notation


• Color Theme
• Light Tape Background
• Show Layout Button
• Allowable Layouts
• Show Memory Buttons
• Replace (÷) Button With (/)
• Replace (E) Button With (00)
• Show Thousands Separators
• Minimum Decimal Digits (0-12)
• Maximum Decimal Digits (0-12)
• Sound
• Font Size (80%-120%)
• Equals Repeat
• Left-Handed Mode

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What's New

Huge update! New layouts, capabilities, features, themes, & options! All new features can be enabled/disabled in Settings.

Please remember to rate this app! Even if you have left a rating before, please rate this, and every version : )

New Layouts, Capabilities & Features

- 3 new layouts: Portrait Scientific, Portrait Tape, Landscape Basic.
- Added Split Screen support for iPad.
- Added 3D Touch support to launch the app in a specific layout.
- Added Voiceover Accessibility including support for Touch Typing.
- Added full resolution support for iPhone 6, 6 Plus, and iPad Pro.
- New Layout Button to quickly switch Layouts.
- New Equals Repeat (press = more than once to repeat the last operation).
- New Interactive Help & Customize screens (see changes real-time).
- Can now Swipe either left or right to change between Basic & Scientific keys.
- Can now Select and Copy directly from the Result field.

New Themes & Options

- 2 new awesome color themes: Pink & Office
- Enable/disable: Show Thousands Separators
- Enable/disable: Replace E Button With 00
- Change Font Size (80-120%)
- Min Decimal Digits (0-12)
- Enable/disable: Light Tape Background
- Enable/disable: Equals Repeat


- iPad layouts are now full screen.
- Upgraded to high-precision calculation engine for +, -, ×, and ÷ operations.
- Expanded gesture area for swipes to include the entire display.
- The Input will now expand to multiple lines & vertically scroll if needed.
- The Input will now show Thousands Separators.
- The Input will shake if Equals is pressed when there is an Error.
- The Result will show an Error if too many decimal places are entered.
- Improved formatting of Result for numbers with only a decimal component.
- The History Tape is now animated when a new item is added.
- The Degree mode indicator now shows which option is selected more clearly.
- The +/- & 1/x buttons stay highlighted if they can be undone by tapping again.
- Miscellaneous enhancements, performance improvements, and bug fixes

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