CALC Smart Calculator ±

Basic « Scientific » Advanced

Price
In-App PurchaseNo
LaunchedNov 21, 2012
Store Categories

Total Ratings

United States

4.1K
5 star
3.3K
4 star
620
3 star
120
2 star
36
1 star
79

Description

Why Choose CALC Smart?
► Used by Scientists, Professionals and Students alike
► Apple-Featured: Spotlighted in Utilities and Calculate & Convert.
► User-Loved: Over 10k+ global reviews and 200M+ sessions validate its utility.
► Educator-Certified: Praised by teachers on the Educational App Store for its intuitive UI.

Ready for the Latest OS
* 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 custom keyboard & 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 Limitless 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: https://QApps.UserVoice.com

Custom Background Tip
* Design your own CALC background with images from NASA’s multimedia library: https://nasa.gov/multimedia

Screenshots

Version History

Releasing updates every 23 days on average. Last update 14 days ago.

3.6.5Jan 07, 2025

Added few new units to the convertor
New setting to disable live calculations
Few minor tweaks as always!

3.6.4Nov 12, 2024

Squished a few Bugs + Minor UI Improvements!

3.6.3Nov 06, 2024

Custom Theme & Feel Designer!

3.6.2Nov 01, 2024

iOS18 touchups + New ability to resize the Top section & Customize colors!

3.6.1Oct 12, 2024

Quick patch to the latest iOS18 optimized release addressing Expression Edit issues.

3.6.0Oct 09, 2024

Finally! iOS18 optimizations :-)

3.5.61Aug 22, 2024

Squished a few small bugs!

3.5.60Jul 12, 2024

Fixed the resize issue on the 13-inch iPad Pro.
Added a quick button to paste from the clipboard.

3.5.59May 08, 2024

Just a few minor Bug fixes

3.5.58Mar 19, 2024

Fix for expression edit issue introduced in prior release.

3.5.56Jan 25, 2024

Minor adjustments

3.5.55Jan 23, 2024

Fixed issue with iPhone 15 Advanced functions

3.5.51Dec 05, 2023

Fixed older iOS versions issue with latest fix for attached Keyboard Delete keys issue & allowed for resizing on iPads / Macs to a Portrait format!

3.5.50Dec 02, 2023

Fixed attached Keyboard Delete keys issue & allowed for resizing on iPads / Macs to a Portrait format!

3.5.49Nov 21, 2023

Optimizations

3.5.48Nov 13, 2023

Just some minor bug fixes

3.5.47Sep 19, 2023

Just squished a few bugs!

3.5.46Jul 13, 2023

Fix for iPhone Landscape mode.

3.5.45Mar 22, 2023

Fix for imaginary square roots.

3.5.44Dec 22, 2022

Just a bug fix

3.5.43Nov 28, 2022

Annoying precision engine bug fix!

3.5.42Nov 09, 2022

Just a couple minor bug fixes!

3.5.41Nov 08, 2022

Just a couple minor bug fixes!

3.5.40May 03, 2022

Fixed top input line horizontal scrolling bug
Fix for Pencil toolbar in multitasking
Fixes for new iPad resolutions

3.5.39May 12, 2021

Adjustment for iPhone history Swipe up gesture
Fix for iPad answer tap gesture

3.5.38Mar 07, 2021

Fix for Zoomed Mode

3.5.37Feb 17, 2021

Now clearing answer whenever syntax gets erroneous.

3.5.36Nov 23, 2020

iPhone 12 bug fixes

3.5.35Oct 21, 2020

iPhone 12 support

3.5.33Sep 10, 2020

Just a few bug fixes

3.5.32Aug 14, 2020

Widget history improvements
Widget auto-clear settings sync with main app

3.5.31Jul 09, 2020

- Fix for International Input formatting while Editing
Your Feedback = Your App :-) TY

3.5.30Jul 07, 2020

- Fixed Input formatting while Editing issue
Your Feedback = Your App :-) TY

3.5.29Jul 03, 2020

- Updated a few Frameworks to the latest
- Fixed Top buttons small font issue
- Fixed Edit Auto-eval issue when operator left in place
Your Feedback = Your App :-) TY

3.5.28Jul 02, 2020

- Updated a few Frameworks to the latest
- Fixed Top buttons small font issue
- Fixed Edit Auto-eval issue when operator left in place
Your Feedback = Your App :-) TY

3.5.27Apr 14, 2020

- Updated a few Frameworks to the latest
- Fixed iPhone search bar no keyboard issues
+ Added option to Swap Delete/AC buttons
Your Feedback = Your App :-) TY

3.5.26Sep 25, 2019

iOS13 tuneups & a few bug Squishes!
Your Feedback = Your App :-) TY

3.5.25Sep 19, 2019

iOS13 tuneups & a few bug Squishes!
Your Feedback = Your App :-) TY

3.5.24Aug 13, 2019

Improvements to rnd(min;max) and round(num;precision) functions
Fix for Graphing while Timer is Disabled
Optimizations and a few bug Squishes!
Your Feedback = Your App :-) TY

3.5.23Mar 16, 2019

Optimizations and a few bug Squishes!
Your Feedback = Your App :-) TY

3.5.22Feb 13, 2019

Squished a few annoying bugs!
Your Feedback = Your App :-) TY

3.5.21Dec 06, 2018

- iPad Pro 11" official support
- Addition of sample standard deviation (stddevs)
- Fix for Coefficient of Variance (CV)
- Added more complications
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.20Sep 28, 2018

- Added iPhoneXR and XS Max support
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.19Jun 23, 2018

- Added round(x;y) advanced function
- Added mmHg Pressure conversion
- A few iPhoneX tune-ups
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.18Jun 19, 2018

- Precision fix for hyperbolic functions (e.g. asinh)
- Option to change the default division symbol to "/"
- Updated MDM definition
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.16May 19, 2018

- Added custom percentage option for the tip calculator
- Fixed converter localization issues when inserting answers
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.15Jan 22, 2018

- Added Ghuntas to the Area Converter
- Fixed trimming on the watch App for irregular text size settings
- Fixed glitches for device flat surface movements
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.14Oct 10, 2017

- iOS11 Drag & Drop capabilities (iPads)
- iPad Pro 10.5" tune-ups
- Fixed icon corners from last update
- Custom Keyboard Press&Hold switch
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.13Sep 28, 2017

- Implemented official iOS11 and iPhone X support
- Fix for converting Pound Forces + added more cup, tsp, tbs options
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.12Dec 13, 2016

- Few adjustments to the Custom Keyboard
- New Complications for quick access on the Watch App
+ A few tweaks as always! - Your Feedback = Your App :-)

3.5.11Nov 05, 2016

Fixed Input Format for zero omission decimals (.0 vs. 0.0)
Made input Formatting even faster!
Added km/l to the Consumption unit converter
Added a 3rd Alternative tapping sound option
Few other small tweaks - Your Feedback = Your App :-)

3.5.10Nov 01, 2016

- Fix for long expression slowness when Input Format's ON
- Fix for Custom Advanced functions UserVoice linking
- Few other small tweaks

Your feedback = Your App :-)

3.5.9Oct 26, 2016

- Fix for Short Ton conversion
- Adjusted EE to not count as "e" on it's own
- Added Board Ft (FBM) among Volume units
- Few user requested fixes and tune-ups

Your feedback = Your App :-)

3.5.8Sep 20, 2016

- iOS10 widget optimizations!

Your feedback = Your App :-)

3.5.7Sep 10, 2016

NOTE: 1E1 = 10 but 1E = e^1
Insert Custom Functions via UserVoice link
MDM Config Fix + AppConfig support
Your feedback = Your App :-)

3.5.6Aug 09, 2016

Minor Widget adjustments
Custom Functions - UserVoice library link
MDM Config Fix + AppConfig support
Your feedback = Your App :-)

3.5.5Aug 02, 2016

Financial functions library via UserVoice
MDM server config & actions support
Your feedback = Your App :-)

3.5.4Jun 22, 2016

Few user requested fixes and tune-ups...
Keep it coming - Your feedback = Your App :-)

3.5.3Jun 21, 2016

Fixed Graphing that got stuck for removing the old in-app purchase
Few user requested fixes and tune-ups...
Keep it coming - Your feedback = Your App :-)

3.5.2Jun 09, 2016

New Scientific Portrait setting
(Trick: Tap & Hold Options for quick ON/OFF)
Themes tune-ups and improvements
Reverse fraction precision increased to 1/999
History Archiving automation
New interactive Tutorial!
Quite a few fixes and tune-ups...
Keep the feedback coming! :-)

3.5.1Apr 03, 2016

Fix for reverse Velocity conversions: i.e. hour/Km, min/cm, sec/m
Some minor tweaks ~ keep the feedback coming :-)

3.5.0Mar 09, 2016

Added reverse Velocity conversions: i.e. hour/Km, min/cm, sec/m
Added basic Graphing for CALC Prime users (experimental)
Fix for Electron Volts conversions
Few other tweaks :-)

3.4.17Dec 18, 2015

Fixes and Tune-ups

3.4.16Nov 21, 2015

iPad Pro bug fixes
More Themes now enabled

3.4.15Nov 07, 2015

Watch App initial load fix.

3.4.14Oct 13, 2015

- iOS9 iPad Multitasking with split view
- iPhone 6s 3D-touch icon shortcuts
- Spotlight quick CALC History Search
- watchOS 2 Native App update
+ a few tweaks!

3.4.12Sep 23, 2015

Quick patch for iPhones 4 & 5 not storing to history + other minor tweaks.

Last Update:
iPhone6/6+ & iPad only:
- Swipe down on "..." in the Landscape mode to show History/Tape roll
- Added top quick Access buttons for Last Functions / Answer in Portrait
All devices iOS7+:
- New Options in Settings, incl. Numpad Reverse to 1-2-3
- New Conversion Categories (Jet Fuel / Radiation Dose)
- More Tip calculator choices in the Approximator
+ some final Fixes and Tune-ups before the next major release

3.4.11Sep 21, 2015

- Swipe down on "..." in the Landscape mode to show History/Tape roll
- New Options in Settings, incl. Numpad Reverse to 1-2-3
- Added top quick Access buttons for Last Functions / Answer in Portrait
- New Conversion Categories (Jet Fuel / Radiation Dose)
- More Tip calculator choices in the Approximator
+ some final Fixes and Tune-ups before the next major release

3.4.10Aug 19, 2015

- Fix for Watch App Converter Preferences sync (In-App)
- New Instant Tip calculator with an Approximator
- Currency conversions with Country Flags for iOS8+
- Swipe right for quick access to last 6 functions
- Force press to pick a button size on the Watch
+ a few Fixes and Tune-ups

3.4.9Aug 05, 2015

- New Instant Tip calculator with an Approximator
- Currency conversions with Country Flags for iOS8+
- Swipe right for quick access to last 6 functions
- Force press to pick a button size on the Watch
+ a few Fixes and Tune-ups

3.4.8Jun 19, 2015

Apple Watch UX
- Even bigger buttons and new layout
- Say just "convert 34 gallons" option

iOS improvements
- more tip calculator choice on % swipe-down
- fixed parallax background image on iPhones
- added Air Print options for selected history items
+ a few Fixes and Tune-ups

3.4.7Jun 06, 2015

Apple Watch UX
- Bigger buttons and layout
- Swipe right to Convert
- Tip calculator Splits
- Watch History with Glance

Converter
- Favorite Categories
- Added Typography units
- Added Radiation Exposure units

+ a few Fixes and Tune-ups

3.4.6Apr 22, 2015

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

LaunchedNov 21, 2012

Other Information

In-App Products

1. Prime - Advanced Functions, Converter, Basic graphing + Custom Theme Design$1.99