# Simple Calculator. vs X123 Calculator with memory

The clearest difference is in-app purchases: Simple Calculator. at none against X123 Calculator with memory's 1. Simple Calculator. also leads on ratings volume (1.6K vs 2). X123 Calculator with memory's advantage is ads (none vs shown) and review sentiment (100% vs 65%). 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. Simple Calculator. asks for nothing beyond the download.

X123 Calculator with memory holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Simple Calculator. has 1.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 65% of Simple Calculator.'s written reviews are positive against 100% of X123 Calculator with memory's.

Simple Calculator. ships an update every 3 months, X123 Calculator with memory fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Simple Calculator. | X123 Calculator with memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.6K ratings)](https://appshunter.io/ios/app/simple-calculator/id1324926551/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/x123-calculator-with-memory/id6469709507/reviews)** |
| Number of ratings | **1.6K** | 2 |
| Positive reviews | 65.1% 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 | 5 MB | 20 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [tasser gyati](https://appshunter.io/developer/1324926550) | [Botto Ingenierie Informatique](https://appshunter.io/developer/1712510068) |

## What reviewers say

### Simple Calculator.

[App page](https://appshunter.io/ios/app/simple-calculator/id1324926551)

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

**Highlights:** Real-world logic, no forced order of operations, Running total display, Cost, sell, margin calculations, Add/subtract percentages in one step, Clean, intuitive interface with large buttons, Minimal, non-intrusive ads

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Supports percentage calculations
- 🚀 Fast and responsive
- 🔒 No security issues reported

**What reviewers complain about**

- 🐛 Occasional display issues with underline artifacts
- 📢 Intrusive ads in free version
- 💰 Paid version not clearly advertised

**Reported bugs**

- Incorrect calculation results in some cases
- Ads appearing during critical usage scenarios

**Requested features**

- Add a dedicated 'C' clear button
- Provide more customization options for key layout
- Implement a history/memory function


### 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 Simple Calculator. free?

Simple Calculator. 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, Simple Calculator. or X123 Calculator with memory?

X123 Calculator with memory is rated higher. Simple Calculator. averages 4.6 out of 5 from 1.6K ratings, while X123 Calculator with memory averages 5.0 from 2 ratings.

### Do Simple Calculator. or X123 Calculator with memory have ads?

Simple Calculator. shows ads; X123 Calculator with memory does not.

### Which is updated more often, Simple Calculator. or X123 Calculator with memory?

Simple Calculator. ships an update every 3 months, and X123 Calculator with memory fortnightly. Most recently, Simple Calculator. was updated on November 6, 2026 and X123 Calculator with memory on November 3, 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.*