Sci:Pro Calculator 4+

Jerry Montgomery

Designed for iPad

    • 4.8 • 2.3K Ratings
    • Free



Sci:Pro Calculator is a simple multi-mode calculator for your iPhone, iPad, and iPod Touch (Universal App). The app features three modes of operation: Basic, Scientific, and Programmer. Each mode features an easy-to-access history view and support for sharing results using e-mail or by copying & pasting values to and from other applications.

This is our first app for the App Store and we’re making the first version free for everyone to use without ads. If you like the app please take a moment to rate it for us. if you encounter any bugs or problems while using it please let us know and we’ll do our best to fix them as quickly as possible.

App Features:
• No Ads!
• Multi-mode Calculator (Basic, Scientific, Programmer)
• Calculation History (Swipe up/down to access)
• Full screen key layouts (in all orientations)
• Multiple Copy & Paste Formats
• Share Results via Email (Plain Text, HTML)
• Memory Keys (M+,M-,MC,MR)
• Configurable Display Precision (2 to 15 digits)
• User Interface Sounds (Configurable: on/off)
• Retina graphics (Optimized for all devices)

Basic Mode:
• High-Precision Floating Point (2-15 digits display precision)
• Selectable Display Formats (Standard, Scientific, Engineering)
• Basic Math Functions (+, -, ×, ÷)
• Percent Key/Mode (Single value or Expression-based)
• Parentheses Keys (Expression Grouping/Nesting—iPad Only)

Scientific Mode:
• High-Precision Floating Point (2-15 digits display precision)
• Selectable Display Formats (Standard, Scientific, Engineering)
• Basic Math Functions (+, -, ×, ÷, modulo)
• Percent Key/Mode (Single value or Expression-based)
• Parentheses Keys (Expression Grouping/Nesting)
• Trigonometric Functions (Normal, Inverse, and Hyperbolic)
• Selectable Trig. Mode (Degrees, Radians)
• Exponent Functions (2^x, 10^x, x^y, x², x³ e^x)
• Root Functions (√, ³√, x√y)
• Logarithmic Functions (Log2, Log10, Ln)
• Other Functions (random, Exponent, Factorial, 1/x)
• Numerical Constants (π, e)

Programmer Mode:
• 64 bit Integer Values
• Radix Modes & Conversion (Binary, Decimal, Hexadecimal, Octal)
• Integer Math Functions (+, -, ×, ÷, MOD)
• Bitwise Operators (AND, OR, NOR, XOR)
• Bit Shift and Rotate (Single & Multiple bit)
• Signed Number Operations (1’s & 2's Complement)
• Byte-Flip, Word-Flip
• Bit Count
• Random Integer
• Parentheses Keys (Expression Grouping/Nesting)
• Full-time Binary View (iPad Only)
• Encoding Views (ASCII, Unicode, RGB)
• Multiple Copy Formats (Binary, Hex, Decimal, ASCII, Unicode, RGB value)
• Multiple Paste Formats (Decimal, Hex, Octal, and Binary values)

What’s New

Version 1.3.1

• Updated for iOS 13
• Fixes crash during startup on iOS 13
• Minor bug fixes and improvements

This is a minor release to correct a critical bug that causes the app to crash when launching it on iOS 13. Thanks for all the feedback and bug reports during the iOS 13 Beta test. Please let us know if you encounter any problems using the app. Enjoy!

Ratings and Reviews

4.8 out of 5
2.3K Ratings

2.3K Ratings

WaywardHiker ,

Top Notch

Every so often, I need a simple calculator on my iPad, and always forget that Apple, in their brilliance, do not provide one. My quick searches of the app store reveal free ones with ads, and paid ones. Perhaps I am being cheap, but every device I have ever owned, has provided at least a basic calculator that does not include ads, for free. Wt… Apple.

Anyhow, today I again found myself needing a calculator, and my phone was not available… so I went to my iPad, and oh yeah, that’s right, there is not calculator. Instead of searching the app store for a reason, I browsed the web, and was pointed to Sci:Pro Calculator. I am floored. Basic calculator and much, much, more. Oh, and as someone who has done web development, the RGB entry with color preview is a nice touch, especially when I don’t have the browser development tools handy.


C Bizzel ,


So far I like this Calculator. I'm a retired U.S. Military Combat Pilot (26 years). Have always been into calculators. Back in the day before GPS I was using the HP Scientific Calculator. Some dude figured out how to put in latitude and longitude point a to point B to point C to point D etc. are used to practice with it and lo and behold his formula was spot on them when we went to GPS what can I say GPS was the bomb literally we are used to wonder how did we manage before worldwide GPS so yes this is the nifty little calculator I still can't figure out how to get from standard into the scientific side and into the program side

Sting_18125 ,

Glad there no ads

To me ads are a big time block for getting calculations done in a pinch. I get that ads do help with supporting apps but most have a “monthly fee” like I rather buy a calculator at a store than pay a monthly fee. So I am relieved to see one that doesn’t make you pay monthly and doesn’t force ads on you. I am sure there are hiccups in the app here and there but I hope that the ads don’t pop up in future that would make it really to point to just buy one physically in store.

But all good stuff for my uses keep up nice work

App Privacy

The developer, Jerry Montgomery, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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