Calculator Plus

Calculator Plus – Standard & Scientific Calculator

App IconDownload on the App Store

Price: Free

Developer: Wern Jie
Latest Version: 1.0
Programmed in: Swift
Most Downloaded in: USA (est.)



Calculator+ is a scientific calculator that not only could calculate almost any operation, it can also give you a simplification of the answer*, calculate copied operations, and much more!

With Calculator+, you can type in a lengthy calculation and the app will tell you the answer without a hassle. If your friend ever asked you to answer a math question, you can just copy the question and paste in the app!

– Standard & Scientific Calculator
– Answer Simplification*
– Paste Copied Operations
– Type Long Operations
– No Ads

If you have or find any problems, feel free to contact me at

*Might not work in overly complex operations.


If you have any problems or want to seek further queries, please send a feedback at the application feedback page instead. You could be anonymous if you want.

Leave a Comment

Your email address will not be published. Required fields are marked *

18 comments on “Calculator Plus”

    1. Hi Alex,

      Can you make sure you did not enable “Rotation Lock”? That will lock the rotation of your phone to portrait mode, causing the app to not rotate to landscape for the scientific view.

      If you do, try turning Rotation Lock off and try again.

      Does this work?

        1. Hi Alex,

          You can disable fractions (answer simplification) by tapping the answer and selecting “Don’t Simplify Answer”. This will force the app to display calculations in decimal form.

          Hopefully this helps!

  1. Love the simplicity and a free, no-ads app. Great work. Any chance you can allow the app to show an icon in the Control Center for quick access to it?

  2. It’s a nice app but why are percentages broken? It won’t let me just type a simple percentage subtraction, eg. 100-10% on your app equals 99.9?

    1. Hi Adam,

      This app is designed for accuracy in representing equations mathematically, and “percentage subtraction” isn’t actually a valid mathematical operation. What happens when you attempt to do so is that since 10% is equal to 0.1 when directly converting percentage to decimal, 100 – 10% = 99.9. I presume what your looking for to deduct 10% from 100 is to do:

      100 x (100% – 10%) = 90

      Hope this helps!

  3. It is worth it to leave a rating and comment for providing a needed app without ads. Thank you. I use this almost everyday. Only wish the viewing bar was white instead of black background, to make it more pleasant to see.

  4. Thank you. That’s all–no demands. You definitely deserve to know that We appreciate your hard work and generosity. I don’t know if Karma truly exists, but I hope so, and I believe that you must have wonderful things in your future.

  5. Thanks very much for this simple version for iPad calculator.
    I experienced many apps of calculator for my iPad ,but finally I liked this one for its simplicity so I cancelled all but this one.
    Here I asked you to improve it and below my notes:-
    1. When we in (DEG) mode the button shows rad, so you had better to show DEG or RAD .
    2. Add more mathematical calculations.
    Thanks in advance.
    Best Regards.

    1. Hi Adnan,

      Thank you for the suggestion.

      I’ll try to include features as you have stated in future versions of the app.

      Glad you liked it!

      Wern Jie