# Basic Calculator vs Calculator HD Pro

The clearest difference is price: Basic Calculator at Free against Calculator HD Pro's $9.99. Calculator HD Pro's advantage is ads (none vs shown) and review sentiment (95% vs 74%). On rating, update cadence, in-app purchases and monetization model there is nothing between them.

Basic Calculator is free to download; Calculator HD Pro costs $9.99 up front. Basic Calculator sells 1 one-off in-app purchase and Calculator HD Pro sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Basic Calculator against 4.8 for Calculator HD Pro. Both are backed by a comparable volume of ratings — 3.2K and 11K respectively. Written reviews are what separate them: 74% of Basic Calculator's written reviews are positive against 95% of Calculator HD Pro's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Basic Calculator | Calculator HD Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.8 (3.2K ratings)](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248/reviews) | [4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews) |
| Number of ratings | 3.2K | **11K** |
| Positive reviews | 74.3% of reviews | **94.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 93 MB | 48 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [MobArts](https://appshunter.io/developer/429185872) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Basic Calculator

[App page](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248)

A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.

**Highlights:** Large, easy-to-press buttons, Multiple beautiful skins, Basic arithmetic operations, Standard memory functions, Supports large numbers (up to 60 digits), Multitasking support (Split View, Slide Over)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Banner Ad Removal | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Useful copy and paste functions
- 👍 Clear and large display
- 👍 Variety of skins/themes
- 👍 Responsive and fast

**What reviewers complain about**

- 🐛 Compatibility issues with iOS updates
- 🐛 Inaccurate calculations with larger numbers
- 🔋 Slow load times
- 🔍 Intrusive ads

**Reported bugs**

- Crashes or freezes after iOS updates
- Percent key not functioning correctly

**Requested features**

- Reinstate iPhone version
- Add scientific calculator functions
- Improve memory retention


### Calculator HD Pro

[App page](https://appshunter.io/ios/app/calculator-hd-pro/id565023649)

This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

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

**What reviewers like**

- 🚀 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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


## Frequently asked questions

### Is Basic Calculator free?

Basic Calculator is free to download, with in-app purchases available.

### Is Calculator HD Pro free?

Calculator HD Pro costs $9.99, and also offers in-app purchases.

### Which has better reviews, Basic Calculator or Calculator HD Pro?

Basic Calculator and Calculator HD Pro are both rated 4.8 out of 5 on the App Store, from 3.2K and 11K ratings respectively.

### Do Basic Calculator or Calculator HD Pro have ads?

Basic Calculator shows ads; Calculator HD Pro does not.

### Which is updated more often, Basic Calculator or Calculator HD Pro?

Basic Calculator ships an update every 2 months, and Calculator HD Pro every 2 months. Most recently, Basic Calculator was updated on September 23, 2026 and Calculator HD Pro on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*