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Calculator +


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Free calculator app for iPad and iPhone with no ads. Designed with simplicity, usability and beauty in mind!


- NO ads! Yes completely without ads. NO annoying popups!
- 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
- 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 with, no ads, no prompts & if you like it, support us by upgrading or giving us a positive review.

Thanks :)

What's New in Version 2.2.6

- The Math Engine is now faster
- Widget layout fixed at iOS 10.0
- Minor Bugs Fixing


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iPhone Screenshot 1
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Customer Reviews

Equations worst nightmare!!

Great application. At first I was hesitant about actually paying for upgrade. I was actually testing out 2 or 3 different calculators, when I finally invested in this one. Now it's the only one I use. I'm in college for civil&mechanical engineering. This little guy has helped me out so much in my math courses it's practically paid for itself already. I recommend this app to anyone who uses any math function on a daily basis, the hand drawing feature was brilliant. For $7.62 you can't find a better calculator that does this! BETTER YET JUST BUY IT AND SEE!!

Powerful yet simple. I love this calc.

This is a powerful calculator with a simple interface. Its not not only good for every day use, but is also good for accounting, advanced maths and more (hence the name Calculator+). I've been using it for years and one of the things that I love the most is that the developer is always improving the app and keeping it stable during years. I love it, very useful, can be used even for algebra and complex maths.

Only iPad calculator worth using

Tried a bunch of iPhone calculators for science this is the one I tell my students to get. Does all you would want in a scientific calculator with keys large enough to actually use. Not tried graphing with it but I am sure it works fine. My only complaint is that it is hard to find on store and I am always forgetting the publishers name when recommending it.

Calculator +
View in iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • Free
  • Category: Productivity
  • Updated:
  • Version: 2.2.6
  • Size: 10.5 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
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Top In-App Purchases

  1. Calculator$9.99
  2. Graphing Calculator$3.99
  3. Handwriting Calculator$2.99
  4. Polynomial Calculator$2.99
  5. Linear Calculator$2.99
  6. Currency Converter$2.99
  7. Themes Pack$2.99
  8. Calculator Plus$3.99
  9. Scientific Calculator$4.99
  10. Calc$2.99