# Sci:Pro Calculator

> Multi-mode calculator for iOS with basic, scientific, and programmer functionalities. (iPhone/iPad app by Jerry Montgomery.)

- Source: https://appshunter.io/ios/app/scipro-calculator/id684978583 (this page in markdown: same URL + `.md`)
- Developer: [Jerry Montgomery](https://appshunter.io/developer/684978586)
- Category: Utilities
- Price: Free
- Rating: 4.80/5 from 3,603 App Store ratings · 203 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 70 MB
- Languages: American English
- Released: 2013-08-13
- Data updated: 2026-08-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/scipro-calculator/id684978583/reviews.md

## What is Sci?

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)

## Key features

- Multi-mode calculator (Basic, Scientific, Programmer)
- Calculation history
- Share results via email
- Copy & paste values
- Configurable display precision
- Retina graphics

## What do users think of Sci?

Overall sentiment: positive

**Pros**

- 🚀 Fast and responsive
- 👍 Clean and intuitive interface
- 🔒 No ads or in-app purchases
- 💡 Versatile with basic, scientific, and programming modes
- 👍 Useful for a variety of calculations
- 👍 Large display and easy to read
- 👍 Seamless workflow and functionality

**Cons**

- 🐛 Occasional bugs or glitches
- 🔍 Lack of split-screen support on iPad
- 🔍 Limited keyboard input support
- 🔍 Inconsistent behavior when switching between modes

**Commonly reported bugs**

- Incorrect calculations for certain sequences of operations
- Memory issues when dealing with large numbers or exponents
- Compatibility problems with newer iOS versions

**Most requested features**

- Ability to configure number of digits displayed
- Option to change display colors or themes
- Support for more advanced programming features
- Integration with other apps or services

## Recent user reviews (10 of 203)

All indexed reviews: https://appshunter.io/ios/app/scipro-calculator/id684978583/reviews.md

### 5/5 — Most Excellent!

*2026-05-03, version 1.3.1*

This is my goto calculator free with history & no ads. Does most of what I need a calculator for. No problems ever. Highly recommended.

### 5/5 — calculator

*2026-04-25, version 1.3.1*

It is  really helpful

### 5/5 — Perfect

*2026-03-12, version 1.3.1*

This is a great calculator!  I just discovered the history pane, and WOW, it just keeps getting better.  Thanks!

### 5/5 — Nice Calculator

*2025-09-19, version 1.3.1*

This is the nicest Calculator I have used on both iPad and iPhone. The way the History works not also showing but easy to open. The Email options text and html. I Like It!!!

### 5/5 — Love it and use it everyday

*2025-08-08, version 1.3.1*

Super clean interface, ample functionality but most importantly has the features I was looking for. Would be nice to be able to access the scientific functions in vertical mode but it's a minor thing. I hope this app stays compatible with future iOS versions. No ads or paywalls is very generous of the developer. Thank you!

### 5/5 — The Calculator App for the iPad

*2025-05-17, version 1.3.1*

If you have used calculator on the iPhone and wondering where it is on your iPad…

### 1/5 — Yup

*2025-04-02, version 1.3.1*

Apple should chuck their calculator app and buy this one, to include in the apple software stable. 

Thanks for the great free app. This I would pay for. Now in 2024 is faulty try inputting 5836 + see what happens.

### 5/5 — Completely FREE top notch calculator

*2025-02-28, version 1.3.1*

No ads, completely free, does what a calculator should do

### 2/5 — Terrible app

*2025-01-24, version 1.3.1*

So while free and free of ads, kudos, but not being able to write out math and see the syntax on screen before hitting equals is pretty annoying. Though what’s even more annoying is Apple not having the iOS calculator on iPad.

### 5/5 — Great 👍

*2024-10-23, version 1.3.1*

Useful, Free, Ad-Free, and Privacy Respected. What is not to like!!! Thank you

## Frequently asked questions about Sci

### What does Sci:Pro Calculator do?

Sci:Pro Calculator is a multi-mode calculator for iOS devices. It offers three distinct modes: Basic for everyday calculations, Scientific for advanced mathematical functions, and Programmer for bitwise operations and number base conversions.

### What are the key features of this calculator app?

Key features include three modes of operation, an accessible calculation history, the ability to share results via email or copy/paste, full-screen key layouts, and configurable display precision. It also supports memory keys and user interface sounds.

### Is this app free to use?

Yes, the first version of Sci:Pro Calculator is completely free to use and does not contain any advertisements. The developers aim to provide a functional and ad-free experience for all users.

### What devices is Sci:Pro Calculator compatible with?

This is a universal app designed for iPhone, iPad, and iPod Touch. It features Retina graphics optimized for all devices and offers full-screen key layouts in all orientations.

### What are the different modes and their uses?

The Basic mode handles standard arithmetic. Scientific mode includes trigonometric, exponential, and logarithmic functions. Programmer mode supports 64-bit integer values, radix conversions (binary, decimal, hex, octal), and bitwise operations, making it suitable for coding tasks.

## Version history (last 5 releases)

### 1.3.1 — 2019-09-20

• 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!

### 1.3.0 — 2018-03-13

• 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!

### 1.2.5 — 2017-03-08

• 64-bit support
• Scientific notation for display, history, and e-mail values
• Pop-up display mode selection menu (long-press gesture)
• Fixed UI layout bug for iPhone 6+, 6s+, 7+ devices
• Fixed issue with iPhone devices running in zoomed mode
• Code optimizations & clean-up
• Expanded help/how-to information
• Assorted bug fixes

This version is a replacement for the recent v1.2.4 release that adds a fix for iPhone devices running with with zoomed display mode. Thanks for all the feedback and support while we worked to get this version out—sorry it took so long. Please let us know if you encounter any problems using the app on the new iPhone or iOS releases. Enjoy!

### 1.2.4 — 2017-03-01

• 64-bit support
• Scientific notation for display, history, and e-mail values
• Pop-up display mode selection menu (long-press gesture)
• Fixed UI layout bug for iPhone 6+, 6s+, 7+ devices
• Code optimizations & clean-up
• Expanded help/how-to information
• Assorted bug fixes

This version features 64-bit code support for optimal performance on the latest IOS devices. Thanks for all the feedback and support while we worked to get this version out—sorry it took so long. Please let us know if you encounter any problems using the app on the new iPhone or iOS releases. Enjoy!

### 1.2.3 — 2014-11-11

• Fixed layout problems for iPhone 6/6+
• Added Retina HD Graphics
• Native iOS 8 Build
• Minor bug fixes

This release primarily adds support for iPhone 6/6+ devices and corrects all known bugs related to the new iOS 8 release. Thanks for all the feedback and support while we worked to get this version ready. Please let us know if you encounter any problems using the app on the new iPhone or iOS releases.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*