Calculator ‪+‬ 4+

Scientific Calculator Plus App

Designed for iPad

    • 4.5 • 4.5K Ratings
    • Free
    • Offers In-App Purchases


Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind!


- Free scientific calculator
- Apple Watch support
- Elegant & Intuitive interface
- Supports handwriting
- Displays both the equation & the result at the same time
- Supports Fraction & Percent
- Supports many scientific functions
- Advanced editing by easily going back and forth
- Can be added to Today Screen

If you are looking for more advanced features you can upgrade to one or more of the following:

- Handwriting Calculator
- Fraction Calculator with feet, inches & cm support!
- Solving for x with a polynomial Calculator for solving quadratic & cubic equations
2x³ - 4x² - 22x + 24 = 0
- Linear Equations Solver for solving system of linear equations
2x – y = 9
3x + 4y = –14
- Graphing Calculator to find the local min, max & intersection points
y = 2x³ – 4x
(x² + y²)³ = -27y²x²
- Currency Converter
- Base Converter ( HEX OCT BIN DEC )
- Multiple themes

Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review.

Thanks :)

What’s New

Version 2.6.0

bug fixing and performance improvement

Ratings and Reviews

4.5 out of 5
4.5K Ratings

4.5K Ratings

Thrunkz ,

Great calculator for iPad

I use to do a long calculation in my physics lab, so far this calculator do the work, and is easy to use. Plus you have the advantage to track what you wrote, and edit if there was a mistake, which help me to save a lot time, especially when I’m tired and start to miss or forget something in the calculation. Also if the answer wasn’t what I was expecting, 🧐 tracking my formulas is a good way to find where is my mistake. Overall I love it, and is my main calculator 👍😁... give a try and you will see the difference compared to others calculator out there.

C Patel ,

NEGATIVE STARS! BIG GLITCH! I was charged again! This time $4.99

I had paid the in app purchase price for this app a couple (or more) of years ago. This has been my only calculator app for iPad. I was happy to use it regularly.
Today suddenly the app was behaving funny, it would not stay open (even after the restart cycles on my iPad). So I did what I am asked to do. I deleted the app and went back to re-download it. It showed the usual "download from cloud" symbol, and did not ask for any other authentication. It downloaded fine and when opened asked me to rate the app! (Imagine if I was a new user and opening the app for the first time....asking me to rate it before I have used it even once!). I clicked later and went to punch in my equation. Lo and behold the screen appeared asking me to pay $4.99. This has happened for many other paid apps too, no big deal. Always it says you have already purchased this app so there will be no charge (or some thing to that effect). I went ahead and allowed the transaction to go through. Sad thing is, it charged me - AGAIN. This is ROBBERY, by any standards.

App_Reviewer 3000 ,

Good, but sometimes promos for upgrading

I use this calculator all the time because it has all the functions for basic calculations. It's no TI-84, but I can do sine, cosine, and tangent along with logarithmic functions. If you’re looking for something that’s at least a little bit better than the Apple calculator, this is the one. I also like the fact that when you start typing there are arrow buttons that allows you to go through the problem and edit it if something was typed in wrong. In the Apple calculator, you have to simply start over what you were typing if you realized at the end of the problem that you copied it down wrong or something. The only real problem with it is that even though it is free, it asks you to upgrade 50% of the time, but I guess for me it’s not a big deal.

In-App Purchases

Scientific Calculator
Graphing, Linear Equations & Quadratic Solver
Linear Calculator
Solve System of linear equations
Factoring Calculator
x³ - 4x² - 3 = 0. Quadratic & Cubic eq Solver
Fraction Calculator
With Centimeters, Feet and Inches Conversion!
Currency Converter
Get Advanced Converter And Scientific Calc
Graphing Calculator
Graph, Trace & Find Intersection points

App Privacy

The developer,, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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