# Big Button Calculator Pro Lite vs X123 Calculator with memory

The clearest difference is in-app purchases: Big Button Calculator Pro Lite at none against X123 Calculator with memory's 1. Big Button Calculator Pro Lite also leads on ratings volume (14K vs 2). X123 Calculator with memory's advantage is ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. X123 Calculator with memory sells 1 one-off in-app purchase. Big Button Calculator Pro Lite asks for nothing beyond the download.

X123 Calculator with memory holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Big Button Calculator Pro Lite has 14K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 83% of Big Button Calculator Pro Lite's written reviews are positive against 100% of X123 Calculator with memory's.

Big Button Calculator Pro Lite ships an update every 3 months, X123 Calculator with memory fortnightly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Big Button Calculator Pro Lite | X123 Calculator with memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (14K ratings)](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/x123-calculator-with-memory/id6469709507/reviews)** |
| Number of ratings | **14K** | 2 |
| Positive reviews | 82.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 45 MB | 20 MB |
| Requires iOS | 15.2 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cider Software LLC](https://appshunter.io/developer/465180756) | [Botto Ingenierie Informatique](https://appshunter.io/developer/1712510068) |

## What reviewers say

### Big Button Calculator Pro Lite

[App page](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808)

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

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

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Customizable backgrounds
- 🚀 Accurate calculations
- 👍 Large, clear numbers
- 👍 Helpful for homeschooling

**What reviewers complain about**

- 🐛 Ads can be intrusive
- 🐛 Ads in foreign languages
- 🐛 Ads take time to close
- 🔋 High battery consumption due to ads

**Reported bugs**

- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results

**Requested features**

- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version


### X123 Calculator with memory

[App page](https://appshunter.io/ios/app/x123-calculator-with-memory/id6469709507)

This free calculator app offers basic and scientific functions, memory storage, and time calculations. Customize its appearance and layout for enhanced efficiency in everyday tasks and complex computations.

**Highlights:** Basic and scientific calculations, Value memory function, Time calculation with NOW key, Landscape and dark modes, Dual keyboards in landscape, Advanced key customization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads removal | $3.99 | one-time |


## Frequently asked questions

### Is Big Button Calculator Pro Lite free?

Big Button Calculator Pro Lite is free to download, with no in-app purchases.

### Is X123 Calculator with memory free?

X123 Calculator with memory is free to download, with in-app purchases available.

### Which has better reviews, Big Button Calculator Pro Lite or X123 Calculator with memory?

X123 Calculator with memory is rated higher. Big Button Calculator Pro Lite averages 4.7 out of 5 from 14K ratings, while X123 Calculator with memory averages 5.0 from 2 ratings.

### Do Big Button Calculator Pro Lite or X123 Calculator with memory have ads?

Big Button Calculator Pro Lite shows ads; X123 Calculator with memory does not.

### Which is updated more often, Big Button Calculator Pro Lite or X123 Calculator with memory?

Big Button Calculator Pro Lite ships an update every 3 months, and X123 Calculator with memory fortnightly. Most recently, Big Button Calculator Pro Lite was updated on October 29, 2026 and X123 Calculator with memory on October 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.*