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

4.6 out of 5
3.3K Ratings

3.3K Ratings

Aurroron ,

Best calculator app I’ve used so far

I’ve tried probably a couple dozen calculator apps over the past few years. There have been 5 or 6 I’ve used extensively to see if they would work for me. I came across Calculator+ a couple of months ago and I can confidently say it’s the best calculator app I’ve used so far.

There are apps out there that offer some more advanced/specific functions and there are some that specialize in fancy features like handwriting recognition. Calculator+ seems to offer pretty much everything I’ve liked about other calculator apps and displays it all in a sensible UI that’s easy to use.

I’m still using the free version since it has 90% of the functionality I need, but I will probably upgrade to the paid version soon to get access to the equation solver, graphing calculator, and handwriting recognition. Really a great calculator app. Give it a try!

Sean H3O ,

Friend Thought It Was For Nudes

My friend insists that THIS app which I installed on MY phone is for nudes because 'why don't you just use Apple's calculator app?' Clearly she has not used this app's calculator interface.

My point is, there used to be a 'calculator' app for nudes on my phone but since I did not receive any nudes as expected, I deleted this app. What I did receive however, was an excellent user experience throughout the year and more I have used Calculator+, and while this app does not in any way lead to nudes sent to my phone, it does a very good job at intuitively calculating my expenses with it's simple and friendly interface. I have no way to calculate the probability of receiving nudes in the near future but what I do know for certain (besides the stubborn persistent of my friend) is that I will continue to use this app well into the future.

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.

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


Sarah Ragab
62.1 MB

Requires iOS 11.0 and watchOS 3.1 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese

Age Rating
In-App Purchases
  1. Linear Calculator $2.99
  2. Factoring Calculator $2.99
  3. Graphing Calculator $3.99


  • Family Sharing

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

More By This Developer

You May Also Like