Calculator‪‘‬ 4+

Basic + Scientific Math Calc

Impala Studios

    • 4.7 • 313.2K Ratings
    • Free
    • Offers In-App Purchases



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

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: Track all calculations, taxes, and expenses
• 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 3.6.7

In this version we have worked on fixing some bugs.

Love the app? Then don't forget to rate us!
Thanks for your support.

Ratings and Reviews

4.7 out of 5
313.2K Ratings

313.2K Ratings

VaryingDegreesOfRight ,

The History Function is Simply Fantastic

Your Calculator app is 100% the absolute best calculator app I have ever used. I have diagnosed ADHD, and trying to keep a budget can be difficult (I have literal notebooks filled with budgets from years of trying - lol). The history function & feature on your app has allowed me to go back when I forget whether I included a bill amount, and verify whether I need to recalculate. It has saved me so much time & money in my many years of using it. Your Calculator app was the first I ever tried on my very first iPad, and I have downloaded it on every iPadOS device since. It changed the way I do all financial calculations. I am just so happy to be able to support this company in any way, even just with the annual subscription to this app. Thank you for designing something simple, practical, and completely functional.

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.

EdWaRdW818 ,

Just when I thought it couldn’t get worse…

Just wonder thought it couldn’t get worse than 1-2 popups a day, they outdid themselves with a smaller popup that comes up every time I either switch apps or take a while in between equations (e.g. while flipping through paperwork).

Since I have ADHD, this REALLY breaks my concentration, and it went from an unobtrusive banner at the bottom to being worse than a spammy clickbait site (because at least they have an end)! I know you got bills to pay, but this is RIDICULOUS!

Also, I would consider paying a one time fee to get rid of the ads just for the history function alone, but did you REALLY have to make it a SUBSCRIPTION?! I’d almost rather lug around a physical calculator everywhere, because I know that when I give Texas Instruments my money ONCE, it won't bombard me with ads or charge me for using it every year (which paying for this 3 years could buy me a TI-30XIIS)! This time I'm actually uninstalling this garbage, and anybody reading this should either ditch this app or move onto the next app!

Developer Response ,

Thank you for your feedback on our pop-up ads. In return for using the app for free, you will always see ads. We don’t want to inconvenience you, so we’ll take your feedback into account regarding this and see if we can make improvements to their placement and frequency. If you have any further feedback on the app, or suggestions to improve the usability, please feel free to contact us at

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

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