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Calculator +


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


- Free scientific calculator
- 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


iPhone Screenshot 1
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iPad Screenshot 1
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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!!

Great app

Love this calculator. Yes, it was frustrating when it crashed, but uninstalling and reinstalling seems to have fixed it. This is a great free calculator with all the basic functions you might need for free, and more available for short money. Easy, intuitive user interface and no annoying popup ads. Thanks.
Update: I wrote this review a few years ago, but have no reason to change it. I love this app, use it frequently and highly recommend it. Thanks to the developers!

Great as a basic calculator

I can't speak to the more advanced functions, as I don't use them. But this works very well as a basic calendar for balancing the checkbook. I like the history option so I can look back and see if I made any errors. My only complaint is that there is a bit of a lag when pushing the same number twice. You have to wait a second before pushing it again. Not a big deal, but it slows you down a hair when you are entering numbers quickly.

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:
All Versions:

Top In-App Purchases

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  6. Scientific Calculator$4.99
  7. Currency Converter$2.99
  8. Calculator Plus$3.99
  9. Themes Pack$2.99
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