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CALC - The Best Smart Scientific Calculator, Convertor and Timer + Widget & Keyboard

By QApps LLC

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CALC is ultra-intelligent, multi-functional tool that makes you feel like working with an efficient piece of art... Watch App tweaks on the way:

CALC is constantly evolving with feedback (UserVoice). Simply tap and hold the Options button and you can see HOWTOs, submit questions or vote on your favorite new ideas!

CALC now comes with the first release of an Apple Watch app - your feedback will again be essential to shaping it's future!

CALC has sophisticated History Log, Instant Widget, Custom keyboard, and lots of customization options for your eyes and fingers.

CALC features advanced scientific functions, unit & currency conversion, and an elegant user interface. You can even create your own function and share it, or add your own conversion units! CALC also includes a quick timer to help your track your remaining time during a test or workshop

CALC is really clever.
CALC can do live math expressions: From a simple expression like "1+2" to more advanced expressions like "3+(3x9(80+sin(90)))"

Advanced calculator.
By swiping left and right on CALC, you can easily access over 55+ advanced math functions + limitless number of your own!

History log.
CALC remembers what you have calculated. Swipe up, and you can see all your previous calculations and perform aggregate functions.

Built in converter.
Convert your results in 21 common categories, including currency and one extra custom category where you can define your own units and conversions.

Colorful Themes.
Limitless lovely themes for you to browse, including optional parallax background image of your choice!

Easy access.
Tap & Hold a math expression to edit it. Shake your device to undo
Tap & Hold a number key for smart parenthesis
Tap & Hold the decimal point for RANDOM decimal
Tap & Hold the “ans” key for answer history or M+/- feature
Tap & Hold the “÷” key for 1/x
Tap & Hold the “-” key to negate
Text style Edit option for Expressions
Tapping sound options
... and a lot more!


What's New in Version 3.4.6

Apple Watch App Tune-ups
Added UserVoice for smart user feedback
Incorporated native iOS Status Bar
- Added: abs($1) and rnd($1)
- Added "Tip" to the Widget for x+y%
+ Few Minor bugs and fixes


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Apple Watch

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Customer Reviews

Difficult but somewhat useful (On Watch)

I download this app since it has good reviews but after downloading it I wasn't really satisfied since it's difficult to even select your numbers and there is a big gap that could be used for numbers to make it easy to Press. Over all it does what you need to do it even has extra features that are useful but how useful is it when you can't really press any number without pressing the one the you wanted also it's hard to clear your numbers with in the app.

Clean, easy to use

My preferred calculator app. I like the answer history feature.

Easy to use yet very powerful tool

The best CALC out there by a mile, the widget has also keys now and does tips - nice!!!

CALC - The Best Smart Scientific Calculator, Convertor and Timer + Widget & Keyboard
View In iTunes
This app is designed for both iPhone and iPad
Works on Apple Watch with an iPhone
  • Free
  • Category: Utilities
  • Updated:
  • Version: 3.4.6
  • Size: 8.3 MB
  • Apple Watch: Yes
  • Languages: English, Czech, French, German, Italian, Portuguese, Russian, Simplified Chinese, Spanish, Thai
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5, iPhone 6, and iPhone 6 Plus.

Customer Ratings

Current Version:
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Top In-App Purchases

  1. Premium - Advanced functions, converter and themes$1.99