# Calculator! vs Calculator HD Pro

The clearest difference is price: Calculator! at $0.99 against Calculator HD Pro's $9.99. Calculator! also leads on iOS requirement (9.0 vs 15.2). Calculator HD Pro's advantage is review sentiment (95% vs 86%). On rating, ratings volume, update cadence and ads there is nothing between them.

Calculator! costs $0.99 and Calculator HD Pro $9.99 up front. 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 Calculator! against 4.8 for Calculator HD Pro. Both are backed by a comparable volume of ratings — 4.3K and 11K respectively. Written reviews are what separate them: 86% of Calculator!'s written reviews are positive against 95% of Calculator HD Pro's.

Calculator! ships an update every 3 months, Calculator HD Pro every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Calculator! | Calculator HD Pro |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | [4.8 (4.3K ratings)](https://appshunter.io/ios/app/calculator/id432627778/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews)** |
| Number of ratings | 4.3K | **11K** |
| Positive reviews | 86.0% of reviews | **94.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 56 MB | 48 MB |
| Requires iOS | **9.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [7th Gear](https://appshunter.io/developer/321178305) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator!

[App page](https://appshunter.io/ios/app/calculator/id432627778)

This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.

**Highlights:** Standard and scientific calculator modes, Customizable look (iPad only), Portrait and landscape orientation, Notes and drawing tab, Calculation history, AirPrint and email support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator | $0.99 | one-time |

**What reviewers like**

- 💰 Reasonably priced
- 📝 Useful note-taking features
- 📊 Keeps a calculation history
- 🎨 Customizable appearance
- 🔍 Helpful log and tracking features

**What reviewers complain about**

- 🤔 Confusing input box behavior
- 🔍 Lack of graphing features
- 🔍 Missing some scientific calculator buttons
- 🔍 Inconsistent widget behavior
- 🔍 Issues with split-screen and resizing

**Reported bugs**

- Widget doesn't work as expected
- Calculation history not available in portrait mode
- Resizing issues on iPad Pro
- Slow startup times on older devices

**Requested features**

- Add unit conversion tools
- Improve calculation expression logic
- Allow notes to be viewed in portrait mode
- Implement a scratch paper area on the right side
- Add ability to sync data across devices


### 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 Calculator! free?

Calculator! costs $0.99, and also offers in-app purchases.

### Is Calculator HD Pro free?

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

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

Calculator HD Pro is rated higher. Calculator! averages 4.8 out of 5 from 4.3K ratings, while Calculator HD Pro averages 4.8 from 11K ratings.

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

Neither Calculator! nor Calculator HD Pro shows ads.

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

Calculator! ships an update every 3 months, and Calculator HD Pro every 2 months. Most recently, Calculator! was updated on November 1, 2026 and Calculator HD Pro on November 1, 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.*