Calculator combines the Basic & Scientific calculator in one accurate app. Use it for all, from day-to-day calculations, to keeping track of bills, or doing taxes.

Great for all ages and uses. It's fast, handy, with an intuitive design. Everything you need right in the palm of your hand!

Enjoy the extended free functionalities of Calculator!
• Big Buttons for Easy Calculations
• Basic & Scientific Calculator
• History Tape: Copy & Share
• Edit Equation
• Calculate with Degrees or Radians
• Memory Banks
• Choose your Decimal Notation
• Set the Number of Decimals
• Dark Mode
• Support for iPad Split View

More with Calculator Ad-Free.
Go Premium with the yearly subscription and enjoy an ad-free experience, $ 5.99 USD/year.
• Ad-Free • Retro Theme • Premium Customer Support

Terms & Conditions:
 Privacy Policy:

>> Have any questions?
Please check out our Frequently Asked Questions in the app Settings.
If you are unable to find the answers to your questions, our support team is ready and happy to help at!
You can edit both digits and operators of the current equation.
Mathematical Operations
Addition, Subtraction, Division, Multiplication, Percentages, Square, Cubic Exponent, Nth Exponent, Square Root, Cubic Root, Nth Root, Engineering Exponent, Factorial, Power of Two, Power of Ten, Power of E, Natural Logarithm, Common Logarithm, Binary Logarithm, Sine, Cosine, Tangent, Arc Sine, Arc Cosine, Arc Tangent, Hyperbolic Sine, Hyperbolic Cosine, Hyperbolic Tangent, Hyperbolic ArcSine, Hyperbolic Arc Cosine, Hyperbolic ArcTangent, Multiplicative Inverse, Random Number Input
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!


What’s New

Version 3.6.5

Thank you for using Calculator'! This update includes performance improvements.

We value feedback. Let us know if you have something to share at

Ratings and Reviews

4.7 out of 5
303.7K Ratings

303.7K Ratings

FarmGirlG ,

Finally a calculator that shows the history

Now I don’t need to purchase and adding machine. I’ve been planning on buying one for a while because I really want to see the history of my entries, but this is even better; no need to print it out and buy/waste paper adding machine tape. No need to even buy an adding machine. I know that there are other calculator apps which show the history in some inconspicuous location if you know the secret password and cross your eyes just so, but this one is so much more convenient. The history is up front and center without having to say the magic word. Well done!

@MSmith ,

Another Calculator from Same Company Spying on Users

Compare with Apple Calculator. Here is an excerpt from this company's stock verbiage Privacy Policy, "Automatically Collected Data - The Apps collect certain data automatically, such as: the type of device you use, device identifiers, such as the resettable advertising identifier assigned to your device, the IP address of your device, geographical data such as the location of your device, your operating system, Wi-Fi mac address in your area, the type of internet browsers you use, data connection status and success/failure of connection, and data about the way you use the App, and other non-personal data as reasonably required by us to enhance our services. If you activated ‘Location’ in the settings of your device and allowed the App to collect data about the precise location of your device, the App will collect such data. Furthermore, we may collect location data using network triangulation, GPS and Wi-Fi IP address to determine your general device location. We also may collect location data and other diagnostic data through the Apps for network analytics and troubleshooting purposes."

So, to do simple math or have your young one's download any of these onto an iPad or other is very intrusive. What are they doing with all this user data!? Not worth it.

Developer Response ,

Thank you, RDalton, for contacting us with your concerns and feedback regarding your data & privacy. The app doesn’t register any personal data, and all permissions that are asked are purely to support the app’s features. Besides the support of features, we don’t request or use any personal data. Our advertisements use the encrypted data of your device only to show personalised ads, which is no different from the advertisements shown on your browser or in other apps. We have no access to this, and because it’s encrypted, nobody can actually read it. We hope this explains our use of data more. We value the privacy of our users, and are always available for questions and feedback through

Ambient Lizard ,

An Effective #2...

I usually accomplish my calculating needs with a TI-30X-II-S, as it is ideal for the common trigonometry that pops up in daily life. However, if I find myself without it, yet have my iPad, then this calculator app is often the next logical option. It performs all the functions necessary with an acceptable visual interface, but my preference is for the feel of a dedicated device that almost becomes an extension of my hand. The physical touch of the entering data on a touch screen is less appealing to me, as I have to look at the screen to avoid input error; the TI allows touch familiarity, much like when operating a TV remote.
For casual use, it is a solid option. For my preferences, it is my second option... for now.

App Privacy

The developer, Impala Studios, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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