Calculator HD Pro Lite

Calculator HD Pro Lite

Basic & Scientific Calc

51K ratings
429 reviews
Free
With Ads

Details

  • Released
  • Updated
  • November 18, 2012
  • March 19, 2026
Calculator HD Pro Lite screenshot #1 for iPhone
Calculator HD Pro Lite screenshot #2 for iPhone
Calculator HD Pro Lite screenshot #3 for iPhone
Calculator HD Pro Lite screenshot #4 for iPhone
Calculator HD Pro Lite screenshot #5 for iPhone
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About

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

Dual-line display
Calculation history
Full scientific functions
Customizable layouts and themes
Big buttons
Email history
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What users say

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What's New in Calculator HD Pro Lite

4.15.2

March 19, 2026

・Bug fixes and performance improvements

User reviews

My favorite calculator app for many years

Great calculator app. Does everything I want and more. I really like the layout and the configure ability to select key colors, notation format, even specific key symbols.

Needs added function

This calculator does not have memory plus, minus and recall buttons so difficult to use memory calculations.

Get it

This is amazing my friends say wow every time

The best calculator app

I can’t really give you the exact numbers but it is the best calc app I’ve ever used
And I used only pencils and a brain when I started out

Calculator HD

This is the best calculator I have found over several years using different ones. It’s free it’s effective and it also keeps your history in place, which is very helpful. I appreciate that part of the app.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Calculation errors with very large numbers

Bug

Crashes after recent update

Bug

Decimal point displayed as comma

Bug

Requested Features

5 requests

Dark mode option

Feature

Ability to sync calculation history across devices

Feature

More advanced math functions (e.g. dms/dd)

Feature

Customizable button layout

Feature

Ability to disable ads without paying

Feature

FAQ

What does this calculator app do?

This app provides a colorful and user-friendly calculator with big buttons and comprehensive features. It includes a dual-line display to see input and results simultaneously, saves your calculation history, and offers full scientific functions. You can also customize its appearance and functionality.

What are the key features of this calculator?

Key features include a dual-line display for simultaneous input and result viewing, multi-line input for long equations, and a history that saves every calculation with date and time. It also offers full scientific functions, customizable layouts, color themes, font sizes, and left-handed mode.

Is this calculator app free to use?

Yes, the app is free to use and is supported by ads. While the core functionality is free, there are optional in-app purchases available for features like a Today View Widget and Multiple History Tapes.

What devices is this calculator app compatible with?

The app is designed for mobile devices and supports features like iPad Split View and 3D Touch. It also mentions compatibility with iOS 17 and below for its Today View Widget, suggesting it is available on iOS platforms.

How can I customize the calculator?

You can customize the calculator extensively. This includes choosing from 6 different layouts with extra-large button options, selecting from 10 color themes (including Dark Mode), adjusting font size and boldness, enabling left-handed mode, and even customizing button symbols and decimal settings.