Count on Calculator HD: Simple and Powerful, with big buttons for daily calculations. Start Calculating Now!
Calculator HD combines the Standard & Scientific calculator, with extensive & easy functionality options. Calculator HD is Fast, Accurate and Beautiful, it's everything you need right in the palm of your hand!

• Basic Calculation Buttons
• Mathematical / Scientific Buttons - hidden in iPhone portrait view
• Calculate with Degrees or Radians
• Percent Button
• Memory Button
• History View: Save, Copy & Forward
• Backspace Button - Slide/Swipe the Result Screen or use the Back Button
• Quick Equation View
• Split View
• Hand off support (continue calculation on other devices via spotlight or app manager)

Addition, Subtraction, Division, Multiplication, Percentages
Cubic Exponent, Cubic Root
Engineering Exponent
Nth Exponent, Nth Root
Power of E, Power of Ten, Power of Two
Square, Square Root
Natural Logarithm, Common Logarithm, Binary Logarithm
Sine, Cosine, Tan
Arc Sine, Arc Cosine, Arc Tan
Hyperbolic Sine, Hyperbolic Cosine, Hyperbolic Tan
Hyperbolic Arc Sine, Hyperbolic Arc Cosine, Hyperbolic Arc Tan
Multiplicative Inverse, Random Number Input, Factorial

As always, we appreciate your feedback.
Please email us at with any suggestions or questions.
If you are happy with this update, please let us know by rating and reviewing us in the App Store!

-- COUNT ON --

What's New

Version 3.2.13

We listened to your feedback and fixed:
• the button sound can now be switched off again
• the haptic feedback as well
• the settings in landscape mode on iPhone are scrollable again

Ratings and Reviews

4.7 out of 5

670 Ratings

670 Ratings

Best iPad calculator app ever!


Loving the new look and new app icon. This is by far the best calculator app for the iPad.

Simple et efficace


Pas besoin d'une calculatrice avec plein de touche quand celle-ci fait le travail.

Sinus works in rad instead of degrees


Sinus works in rad instead of degrees

Developer Response

Thank you for contacting us with this issue. You can switch between degrees and radians by making use of the advanced buttons. This section should have a button that says either ‘Deg’ or ‘Rad’, depending on which mode you are currently in. If you tap on this button, it will toggle between the 2. The mode you are currently in will then appear next to your current calculation.

I hope this answers your question. If you have any other questions or issues in the future, please do not hesitate to contact us at


Impala Studios B.V.
62.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
English, Dutch, French, German, Greek, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
Age Rating
Rated 4+
© Impala Studios


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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