CALC Smart 4+

Calculate and Convert


Designed for iPad

    • 4.6 • 200 Ratings
    • $0.99


Calculate in real-time, swipe for instant unit conversions. Auto fractions & parentheses, rich functions, history log, tape-roll, custom layouts & more!

Why Choose CALC Smart?

► Apple-Featured: Spotlighted in Utilities and Calculate & Convert.
► User-Loved: Over 7.7k global reviews and 100M+ sessions validate its efficiency.
► Educator-Certified: Praised by teachers on the Educational App Store for its intuitive UI.

Ready for the Latest iOS & watchOS
* Multitask on your iPad and use 3D Touch shortcuts.
* Search your calculation history with Spotlight.
* Widget with history integration.
* Apple Watch support, complete with haptic feedback and complications.

Top 10 Unique Features
① Real-time results, even with incomplete parentheses.
② Landscape mode for shareable history and tape-roll.
③ Optimized widget to save space and time.
④ Fast unit and currency conversions—a swipe away.
⑤ Quick gratuity calculator with rounding options.
⑥ Display decimals as fractions with 1/999 precision.
⑦ Create unlimited custom functions and constants.
⑧ Easy expression sharing via link.
⑨ Built-in timer.
⑩ Customizable themes and layouts.

Why Users Love CALC
* Live Math: Natural input, even for complex calculations.
* Swipe Functions: Over 60 advanced math functions just a swipe away.
* History: Never lose track of your calculations.
* Conversion: 21 categories, plus custom options.

Additional Features
* Edit on the Fly: Long-press to modify expressions and numbers.
* Audio Feedback: Customize tapping sounds.
* Styling: Multiple font choices.
* Enterprise-Ready: EMM support with MDM & AppConfig.

We Listen
* Frequent updates based on your feedback. Got a suggestion? Visit our UserVoice page:

Custom Background Tip
* Design your own CALC background with images from NASA’s multimedia library:

What’s New

Version 3.5.47

Just squished a few bugs!

Ratings and Reviews

4.6 out of 5
200 Ratings

200 Ratings

CWils2811 ,

So close...

I searched and searched for a decent calculator for my Apple Watch. After deliberating the cost, I finally went for this one. It has the features I need/want, and works pretty well. I like the haptics feedback when typing. For some reason, I couldn’t add the complication to my watch face from the phone app, so I had to do it on my watch. It took me a bit of time to figure out how this app works, but I think it’ll be easy and fast to use with time/practice.

J.Le111 ,

The only Calculator I’ll use

Have been using this calc for years and the only one for many reasons.
Most calculators don’t give me the option to see what I’m actually pressing. I like to see my numbers and not just the total.
Plus, I love the interface. Stunning and easy to use!

SuperShoeDiva ,

Ugh I just want to do math

I have used this calculator for a number of years. However the most recent update throws up a dialogue that I’m supposed to swipe down to close but it doesn’t close and now I can’t do any kind of math to save my life!

I received a dev response email today. I can’t tell who is being lame here. iIs it Apple because I only received the email about the developer response today, Oct. 2018? Or is it the developer because they somehow backdated their response, which is dated the day after I posted this review. I suspect it’s both! And restarting the app I didn’t help! You had a bad update own it!

Developer Response ,

Unfortunately when/how the AppStore review responses get to the end users is outside of our control. We’d like to help but without additional information that is very difficult esp. since yours is the only issue instance we know of. Please contact us via UserVoice in the app itself or via the support link on AppStore CALC app listing and include your device info and ideally a screenshot. Thank you for taking the time to help us resolve the issue to your satisfaction.

Original response: Please close and restart the app and/or use one of the support channels to submit a screen shot and your device details so we can identify the issue. Thank you for using CALC! :-)

App Privacy

The developer, QApps LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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