# 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 (409K vs 463). Big Button Calculator Pro's advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On rating, in-app purchases, device support and iOS requirement there is nothing between them.

Calculator‰ is free to download; Big Button Calculator Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for Calculator‰ against 4.9 for Big Button Calculator Pro. That said, the two scores are not equally well evidenced: Calculator‰ has 409K ratings behind it against 463, so its average is the more settled of the two. Written reviews are what separate them: 70% of Calculator‰'s written reviews are positive against 79% of Big Button Calculator Pro's.

Calculator‰ ships an update every 5 months, Big Button Calculator Pro every 2 months. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calculator‰ | Big Button Calculator Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.9 (409K ratings)](https://appshunter.io/ios/app/calculator/id486645049/reviews) | [4.9 (463 ratings)](https://appshunter.io/ios/app/big-button-calculator-pro/id1131056963/reviews) |
| Number of ratings | **409K** | 463 |
| Positive reviews | 69.8% of reviews | **78.6% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Ad-supported** | Paid |
| Size | 47 MB | 27 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator‰

[App page](https://appshunter.io/ios/app/calculator/id486645049)

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

**Highlights:** Large buttons, Clear display, Fast calculations, Intuitive layout, Retina Display support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Large, clear buttons
- 👍 Accurate calculations
- 👍 Simple, no-frills design
- 👍 Reliable and stable

**What reviewers complain about**

- 🔍 Lack of advanced features
- 💰 Ads can be intrusive
- 🔒 Concerns about security/malware
- 🐛 Occasional bugs and glitches

**Reported bugs**

- Calculations sometimes incorrect
- App crashing or freezing

**Requested features**

- Percentage key in portrait mode
- Option to remove ads (paid version)
- More customization options
- Memory function


### 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 no 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‰ or Big Button Calculator Pro?

Calculator‰ and Big Button Calculator Pro are both rated 4.9 out of 5 on the App Store, from 409K and 463 ratings respectively.

### 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 every 5 months, and Big Button Calculator Pro every 2 months. Most recently, Calculator‰ was updated on October 18, 2026 and Big Button Calculator Pro on October 8, 2026.

---

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