七麦数据

A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Completely ad-free.

SEE EVERY STEP
・Dual-line display - shows your input and result simultaneously
・Multi-line input for long equations
・Tap & hold to move the cursor or copy and paste where you want

SAVE YOUR WORK
・History saves every calculation with time and date
・Label important calculations for easy reference
・Email single calculations or complete history
・Swipe down to review previous work

CUSTOMIZE EVERYTHING
・6 layouts including extra-large button options
・10 color themes plus Dark Mode
・Adjustable font size and bold text
・Left-handed mode
・Show or hide features you don't need

SCIENTIFIC FUNCTIONS
・Full scientific calculator when needed
・Memory buttons with values displayed
・Percentage and backspace buttons
・Automatic scientific notation
・VoiceOver accessibility

OPTIONAL IN APP PURCHASES
・Today View Widget (iOS 17 and below)
・Multiple History Tapes

ADDITIONAL FEATURES
・Customizable button symbols and decimal settings
・Multiple backspace button styles
・iPad Split View and 3D Touch support
・Gesture controls for quick access

URL Scheme: calculatorhdpro://

A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Completely ad-free.

SEE EVERY STEP
・Dual-line display - shows your input and result simultaneously
・Multi-line input for long equations
・Tap & hold to move the cursor or copy and paste where you want

SAVE YOUR WORK
・History saves every calculation with time and date
・Label important calculations for easy reference
・Email single calculations or complete history
・Swipe down to review previous work

CUSTOMIZE EVERYTHING
・6 layouts including extra-large button options
・10 color themes plus Dark Mode
・Adjustable font size and bold text
・Left-handed mode
・Show or hide features you don't need

SCIENTIFIC FUNCTIONS
・Full scientific calculator when needed
・Memory buttons with values displayed
・Percentage and backspace buttons
・Automatic scientific notation
・VoiceOver accessibility

OPTIONAL IN APP PURCHASES
・Today View Widget (iOS 17 and below)
・Multiple History Tapes

ADDITIONAL FEATURES
・Customizable button symbols and decimal settings
・Multiple backspace button styles
・iPad Split View and 3D Touch support
・Gesture controls for quick access

URL Scheme: calculatorhdpro://

A colorful calculator with BIG buttons, LOTS of features, and fully customizable. There are no ads.

・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 portrait, 3 landscape)
・10 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
・VoiceOver accessibility
・iPad Split View
・3D Touch
・Today Widget (In App Purchase)
・Multiple History Tapes (In App Purchase)

Gestures

・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste

Customize

・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Sound
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdpro://

A colorful calculator with BIG buttons, LOTS of features, and fully customizable. There are no ads.

・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 portrait, 3 landscape)
・10 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
・VoiceOver accessibility
・iPad Split View
・3D Touch
・Today Widget (In App Purchase)
・Multiple History Tapes (In App Purchase)

Gestures

・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste

Customize

・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Sound
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdpro://

A colorful calculator with BIG buttons, LOTS of features, and fully customizable. There are no ads.

・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 portrait, 3 landscape)
・10 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
・VoiceOver accessibility
・iPad Split View
・3D Touch
・Today Widget (In App Purchase)
・Multiple History Tapes (In App Purchase)

Gestures

・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste

Customize

・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Sound
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdpro://

A colorful calculator with BIG buttons, LOTS of features, and fully customizable.

・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 portrait, 3 landscape)
・10 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
・VoiceOver accessibility
・iOS 9 Split View
・3D Touch
・Today Widget (In App Purchase)
・Multiple History Tapes (In App Purchase)

Gestures

・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste

Customize

・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Sound
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdpro://

A colorful calculator with BIG buttons, LOTS of features, and fully customizable.

・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 portrait, 3 landscape)
・10 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
・VoiceOver accessibility
・iOS 9 Split View
・3D Touch
・Today Widget (In App Purchase)
・Multiple History Tapes (In App Purchase)

Gestures

・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste

Customize

・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Sound
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdpro://

A colorful calculator with BIG buttons, LOTS of features, and fully customizable.

・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 portrait, 3 landscape)
・10 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
・VoiceOver accessibility
・iOS 9 Split View
・3D Touch
・Today Widget (In App Purchase)
・Multiple History Tapes (In App Purchase)

Gestures

・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste

Customize

・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Sound
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdpro://