# Calculator HD Pro — Basic & Scientific Calc

> A customizable, ad-free basic and scientific calculator with history and advanced features. (iPhone/iPad app by Cider Software LLC.)

- Source: https://appshunter.io/ios/app/calculator-hd-pro/id565023649 (this page in markdown: same URL + `.md`)
- Developer: [Cider Software LLC](https://appshunter.io/developer/465180756)
- Category: Utilities, Education
- Price: $9.99 with in-app purchases
- Rating: 4.80/5 from 11,230 App Store ratings · 785 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.2 · 48 MB
- Languages: Dutch, German (Germany), Russian, European Spanish, American English, Italian, Japanese, Chinese (Simplified, China), European Portuguese, French (France) and 1 more
- Released: 2012-10-13
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews.md

## What is Calculator HD Pro?

A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Completely ad-free.

SEE EVERY STEP
・Dual-line display - shows your input and result simultaneously
・Multi-line input for long equations
・Tap & hold to move the cursor or copy and paste where you want

SAVE YOUR WORK
・History saves every calculation with time and date
・Label important calculations for easy reference
・Email single calculations or complete history
・Swipe down to review previous work

CUSTOMIZE EVERYTHING
・6 layouts including extra-large button options
・10 color themes plus Dark Mode
・Adjustable font size and bold text
・Left-handed mode
・Show or hide features you don't need

SCIENTIFIC FUNCTIONS
・Full scientific calculator when needed
・Memory buttons with values displayed
・Percentage and backspace buttons
・Automatic scientific notation
・VoiceOver accessibility

OPTIONAL IN APP PURCHASES
・Today View Widget (iOS 17 and below)
・Multiple History Tapes

ADDITIONAL FEATURES
・Customizable button symbols and decimal settings
・Multiple backspace button styles
・iPad Split View and 3D Touch support
・Gesture controls for quick access

URL Scheme: calculatorhdpro://

## Key features

- Dual-line display
- Multi-line input
- Calculation history
- Customizable layouts and themes
- Full scientific functions
- Left-handed mode
- VoiceOver accessibility

## Pricing and in-app purchases

Base price: $9.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Widget | $1.99 | one-time |
| Multiple History Tapes | $1.99 | one-time |


## What do users think of Calculator HD Pro?

Overall sentiment: positive

**Pros**

- 🚀 Significantly better than Apple's calculator
- 👍 Excellent app with great features
- 👍 Flawless app, very useful
- 👍 Fantastic calculator, meets all needs
- 👍 Best calculator app, highly recommended
- 👍 Brilliant, polished, and customizable
- 👍 Versatile, easy to use, and reliable
- 👍 Powerful and user-friendly
- 👍 Intuitive, clean interface, and full-featured

**Cons**

- 🐛 Bothersome pop-up review requests
- 🐛 Cannot delete lists in history tapes
- 🐛 Repeated rate and review pop-ups

**Commonly reported bugs**

- Cannot delete lists in history tapes
- Ads still appear after purchasing full version

**Most requested features**

- Add binary, decimal, and hex conversion
- Ability to manually sort result lines
- Add a tax calculation button

## Recent user reviews (10 of 785)

All indexed reviews: https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews.md

### 1/5 — Stop asking for a review after I did one!

*2026-07-17, version 4.15.2*

Stop asking for a review after I did one!

### 5/5 — Quick and Easy

*2026-07-15, version 4.15.2*

There is little to say other than it is there when you need it. No hangups, freezes or any other malfunctions. I would recommend this calculator app to anyone wanting an easy way to do math.

### 5/5 — Reviewing

*2026-07-15, version 4.15.2*

Excellent, useful and productive app.

### 5/5 — Calculator HD Pro

*2026-07-11, version 4.15.2*

I have used this calculator for a couple of years. I love how easy it is to use. I appreciate being able to edit calculations so to keep track in budgeting. Has many helpful features.Customer service is excellent! I highly recommend this Calculator app.

### 5/5 — Stop

*2026-06-27, version 4.15.2*

The notifications for reviews is crazy i already gave it 5 stars. If it could calculate distances it would be great

### 5/5 — Great Calculator

*2026-06-23, version 4.15.2*

My go to calculator.

### 5/5 — Great calc

*2026-06-22, version 4.15.2*

Great calc.  The history of past calculations is super.  Very easy to.  I'm a machinist and i use it all the time.

### 5/5 — Get this app!

*2026-06-06, version 4.15.2*

Awesome app have used for years. Go pro version

### 5/5 — I love this calculator ❣️

*2026-06-05, version 4.15.2*

I use it daily. It is on my phone so it is my go to calculator. I have used it every day for almost a decade.
It is easily  accessible and easy to use.
Thanks so much for the handy tool.🤗

### 5/5 — Best ever

*2026-05-25, version 4.15.2*

Most user friendly and accurate calculator with the best basic and scientific calculation.

## Frequently asked questions about Calculator HD Pro

### What does Calculator HD Pro do?

This app provides a comprehensive calculator experience with a dual-line display that shows your input and result simultaneously. It supports multi-line input for complex equations, offers extensive customization options for layouts and themes, and includes a full scientific calculator when needed.

### What are the key features of Calculator HD Pro?

Key features include a dual-line display, multi-line input, a history function that saves all calculations, extensive customization of layouts, color themes, and fonts, full scientific functions, left-handed mode, and VoiceOver accessibility.

### Is Calculator HD Pro free to use?

The app is free to download and use, offering a completely ad-free experience. There are optional in-app purchases available for additional features like the Today View Widget and Multiple History Tapes.

### What devices is Calculator HD Pro compatible with?

The app supports various devices and offers features like iPad Split View and 3D Touch support. It also includes a Today View Widget for iOS 17 and below, indicating compatibility with a range of iOS versions.

### How can I save and organize my calculations?

The app features a history function that saves every calculation with its date and time. You can label important calculations for easy reference, email individual calculations or the entire history, and swipe down to review previous work.

## Version history (last 5 releases)

### 4.15.2 — 2026-03-19

- Bug fixes and performance improvements.

### 4.15.1 — 2025-07-10

・Bug fixes and performance enhancements

### 4.15 — 2025-06-27

・New: Paid version can now import data from the free version
・Improved translations across all supported languages
・Minor bug fixes and performance enhancements

### 4.14 — 2025-05-14

- UI Improvements

### 4.13.2 — 2025-01-14

・Bug fixes and performance improvements.

## Apps similar to Calculator HD Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Calculator Pro Elite](https://appshunter.io/ios/app/calculator-pro-elite/id782873188) | 4.8 (2,055) | $9.99 | Utilities |
| [Calculator HD Pro Lite](https://appshunter.io/ios/app/calculator-hd-pro-lite/id571121141) | 4.6 (51,312) | Free | Utilities |
| [Calculator Pro Lite](https://appshunter.io/ios/app/calculator-pro-lite/id782873366) | 4.6 (3,066) | Free | Utilities |
| [Calculator +](https://appshunter.io/ios/app/calculator-plus/id351815470) | 4.6 (10,020) | Free | Utilities |
| [Basic Calculator: Classic Calc](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248) | 4.8 (3,192) | Free | Utilities |
| [Calculator₊](https://appshunter.io/ios/app/calculator/id398129933) | 4.7 (1,726,794) | Free | Utilities |

## More apps by Cider Software LLC

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- [Convert Any Unit Lite](https://appshunter.io/ios/app/convert-any-unit-lite/id478222820)
- [Calculator HD Pro Lite](https://appshunter.io/ios/app/calculator-hd-pro-lite/id571121141)
- [Converter and Calculator Lite](https://appshunter.io/ios/app/converter-and-calculator-lite/id688576152)
- [Converter and Calculator](https://appshunter.io/ios/app/converter-and-calculator/id741771917)

All apps by Cider Software LLC: https://appshunter.io/developer/465180756

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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 2026-08-29.*