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 1.3.0

• Native iOS 11 build
• Support for iPhone X Super Retina HD Display
• Major update of UI code
• Code optimizations & clean-up
• Minor bug fixes

The primary focus of this release is a major reworking of the user interface code to better support new and upcoming iOS devices. Most of these changes are internal and should not be visible to the user. Thanks for all the feedback and support while we worked to get this version out. Please let us know if you encounter any problems using the app. Enjoy!

Ratings and Reviews

4.8 out of 5
894 Ratings

894 Ratings


Finally a free, yet functional calc ad-free

I’m baffled as to why Apple doesn’t include a simple calculator for iPads. While there are tons of free calculator apps out there, they are all riddled with annoying ads. I know that apps aren’t supposed to be free and some on has to pay through ads or money. These guys are awesome enough to offer the app 100% free without ads. Not only that but the interface is beautiful and there are multiple modes for the calculator. While this calculator does not include units conversion modes like others, at least it’s free and it’s functionality is what I need it for. Thanks guys! Super stoked!

Selloursouls ,

Amazing Calc app, dev deserves a thanks!!

I found this calculator app while doing subnetting for my networking class and it has been an absolutely incredible help! The options and presentation of this app are something I expect from a paid app. The fact this app is free and functions like it does shows the developer is proud of his work and wants people to have a good app without hassle. This app is worth paying for, but I love a great app that is very nice to my wallet. It is easy to use and works flawlessly for me.

Jim92677 ,

Best Scientific Calculator

This is absolutely the best scientific/programmer calculator that is available for iOS. It is the only calculator calculator that accepts 64 bit numbers which is essential in this day and age and is much better than other calculators in the App Store that you pay $$ for. Thanks for spending development time on important functionality rather than useless skins that nobody cares about. The author should be charging for this calculator.


Jerry Montgomery
63.7 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2018 Digital Ambience, Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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