# Calculator HD Pro vs Big Button Calculator Pro

The clearest difference is in-app purchases: Big Button Calculator Pro at none against Calculator HD Pro's 2. Calculator HD Pro's advantage is ratings volume (11K vs 477) and review sentiment (95% vs 79%). On price, rating, update cadence and ads there is nothing between them.

Calculator HD Pro costs $9.99 and Big Button Calculator Pro $9.99 up front. Calculator HD Pro sells 2 one-off in-app purchases. Big Button Calculator Pro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Calculator HD Pro against 4.9 for Big Button Calculator Pro. That said, the two scores are not equally well evidenced: Calculator HD Pro has 11K ratings behind it against 477, so its average is the more settled of the two. Written reviews are what separate them: 95% of Calculator HD Pro's written reviews are positive against 79% of Big Button Calculator Pro's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Calculator HD Pro | Big Button Calculator Pro |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Rating | [4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews) | **[4.9 (477 ratings)](https://appshunter.io/ios/app/big-button-calculator-pro/id1131056963/reviews)** |
| Number of ratings | **11K** | 477 |
| Positive reviews | **94.9% of reviews** | 78.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 48 MB | 27 MB |
| Requires iOS | 15.2 | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cider Software LLC](https://appshunter.io/developer/465180756) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### 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


### Big Button Calculator Pro

[App page](https://appshunter.io/ios/app/big-button-calculator-pro/id1131056963)

A user-friendly calculator app featuring large, colorful buttons and a dual-line display for simultaneous input and result viewing. It supports long equations, offers customizable themes and sounds, and includes accessibility features.

**Highlights:** Dual-line display, Big buttons, 18 color themes, Multi-line input, Gesture controls, VoiceOver accessibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculator HD Pro free?

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

### Is Big Button Calculator Pro free?

Big Button Calculator Pro costs $9.99, with no in-app purchases.

### Which has better reviews, Calculator HD Pro or Big Button Calculator Pro?

Big Button Calculator Pro is rated higher. Calculator HD Pro averages 4.8 out of 5 from 11K ratings, while Big Button Calculator Pro averages 4.9 from 477 ratings.

### Do Calculator HD Pro or Big Button Calculator Pro have ads?

Neither Calculator HD Pro nor Big Button Calculator Pro shows ads.

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

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

---

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