# Calculator⁼ vs Big Button Calculator Pro

The clearest difference is price: Calculator⁼ at Free against Big Button Calculator Pro's $9.99. Calculator⁼ also leads on ratings volume (359K vs 463). Big Button Calculator Pro's advantage is review sentiment (79% vs 36%) and in-app purchases (none vs 8). On update cadence, device support and iOS requirement there is nothing between them.

Calculator⁼ is free to download; Big Button Calculator Pro costs $9.99 up front. Calculator⁼ sells 8 in-app purchases, starting at $0.49 per 7 days. Big Button Calculator Pro asks for nothing beyond the download.

Big Button Calculator Pro holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Calculator⁼ has 359K ratings behind it against 463, so its average is the more settled of the two. Written reviews point the same way: 36% of Calculator⁼'s written reviews are positive against 79% of Big Button Calculator Pro's.

Calculator⁼ ships an update monthly, Big Button Calculator Pro every 2 months. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calculator⁼ | Big Button Calculator Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.6 (359K ratings)](https://appshunter.io/ios/app/calculator/id487127942/reviews) | **[4.9 (463 ratings)](https://appshunter.io/ios/app/big-button-calculator-pro/id1131056963/reviews)** |
| Number of ratings | **359K** | 463 |
| Positive reviews | 35.7% of reviews | **78.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 159 MB | 27 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator⁼

[App page](https://appshunter.io/ios/app/calculator/id487127942)

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

**Highlights:** Basic & Scientific Calculator, Live Currency Converter, History Tape, Equation Edit Function, Degrees or Radians Calculation, Memory Banks

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $0.49 | per 7 days |
| Monthly full access | $1.99 | per month |
| Weekly Premium Access | $1.99 | per 7 days |
| Limited Time Offer | $4.99 | per year |
| Premium Yearly | $5.99 | per year |
| Annual Premium Access | $9.99 | per year |
| Retro Theme Calculator' | $0.99 | one-time |
| Lifetime Full Access | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 📊 Helpful history feature
- 💻 Versatile (basic and scientific)
- 🔍 Clear display and large buttons

**What reviewers complain about**

- 🤖 Intrusive and excessive ads
- 💰 Subscription model for ad-free version
- 🔄 Ads interrupting calculations
- 🕰️ Slow performance due to ads

**Reported bugs**

- History not always showing all entries
- Ads covering up parts of the screen
- Inability to close full-screen ads

**Requested features**

- Add fraction button
- Option to clear calculation history
- Ability to copy/paste results
- Customizable layout and themes


### 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⁼ free?

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

### Is Big Button Calculator Pro free?

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

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

Big Button Calculator Pro is rated higher. Calculator⁼ averages 4.6 out of 5 from 359K ratings, while Big Button Calculator Pro averages 4.9 from 463 ratings.

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

Calculator⁼ shows ads; Big Button Calculator Pro does not.

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

Calculator⁼ ships an update monthly, and Big Button Calculator Pro every 2 months. Most recently, Calculator⁼ was updated on October 20, 2026 and Big Button Calculator Pro on October 8, 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.*