# Calculator basic vs CalculatorDU

The clearest difference is in-app purchases: Calculator basic at none against CalculatorDU's 1. Calculator basic also leads on ads (none vs shown) and rating (5.0 vs 4.7). CalculatorDU's advantage is ratings volume (15 vs 2). On price, update cadence and device support there is nothing between them.

Both are free to download. CalculatorDU sells 1 one-off in-app purchase. Calculator basic asks for nothing beyond the download.

Calculator basic holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CalculatorDU has 15 ratings behind it against 2, so its average is the more settled of the two.

Calculator basic ships an update every 3 months, CalculatorDU every 2 months. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Calculator basic | CalculatorDU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calculator-basic/id959434104/reviews)** | [4.7 (15 ratings)](https://appshunter.io/ios/app/calculatordu-for-daily-use/id1523401381/reviews) |
| Number of ratings | 2 | **15** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 87 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenichi Yoshikawa](https://appshunter.io/developer/954163256) | [HappyCode Lab](https://appshunter.io/developer/6793409707) |

## What reviewers say

### Calculator basic

[App page](https://appshunter.io/ios/app/calculator-basic/id959434104)

Personalize your calculation experience with customizable buttons, wallpapers, and themes. Adjust layouts for portrait and landscape modes on your devices for optimal viewing and ease of use.

**Highlights:** Customizable button positions and functions, Set custom wallpapers and background colors, Adjustable button shapes, sizes, and dimensions, Multiple calculation methods and rounding modes, Free adjustment of character and background colors, History log with overwrite or add options

**Features:** macOS Compatibility

**In-app purchases:** none


### CalculatorDU

[App page](https://appshunter.io/ios/app/calculatordu-for-daily-use/id1523401381)

This utility app offers a straightforward calculator for daily use. It supports basic arithmetic, value storage, and calculation verification. Customize display formats and symbols for a personalized experience.

**Highlights:** Basic arithmetic operations, Value storage and retrieval, Calculation verification, Copy and paste functionality, Customizable numerical display, Portrait and landscape modes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide ads | $2.99 | one-time |


## Frequently asked questions

### Is Calculator basic free?

Calculator basic is free to download, with no in-app purchases.

### Is CalculatorDU free?

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

### Which has better reviews, Calculator basic or CalculatorDU?

Calculator basic is rated higher. Calculator basic averages 5.0 out of 5 from 2 ratings, while CalculatorDU averages 4.7 from 15 ratings.

### Do Calculator basic or CalculatorDU have ads?

CalculatorDU shows ads; Calculator basic does not.

### Which is updated more often, Calculator basic or CalculatorDU?

Calculator basic ships an update every 3 months, and CalculatorDU every 2 months. Most recently, Calculator basic was updated on October 10, 2026 and CalculatorDU on October 21, 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.*