# Calculator vs One Hand Simple Calculator

The clearest difference is in-app purchases: Calculator at none against One Hand Simple Calculator's 1. Calculator also leads on ratings volume (916 vs 30). One Hand Simple Calculator's advantage is update cadence (every 3 weeks vs every 13 months) and review sentiment (100% vs 80%). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Calculator against 4.7 for One Hand Simple Calculator. That said, the two scores are not equally well evidenced: Calculator has 916 ratings behind it against 30, so its average is the more settled of the two. Written reviews are what separate them: 80% of Calculator's written reviews are positive against 100% of One Hand Simple Calculator's.

Calculator ships an update every 13 months, One Hand Simple Calculator every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calculator | One Hand Simple Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (916 ratings)](https://appshunter.io/ios/app/calculator/id549782479/reviews) | **[4.7 (30 ratings)](https://appshunter.io/ios/app/one-hand-simple-calculator/id1527524512/reviews)** |
| Number of ratings | **916** | 30 |
| Positive reviews | 79.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 11 MB | 41 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Horizon Business, Inc.](https://appshunter.io/developer/431586531) | [Shigeo Fukuda](https://appshunter.io/developer/1282972116) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator/id549782479)

This is a straightforward calculator application designed for ease of use and clear readability. Users can personalize the app's appearance by choosing their preferred background and display themes.

**Highlights:** Easy to use interface, Clear display, Customizable background, Customizable display themes

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💻 Easy to use
- 🎨 Colorful and visually appealing
- 👀 Large, easy-to-read numbers
- 🎯 Accurate calculations
- 🆓 Free app

**What reviewers complain about**

- 🔊 Loud button clicking sound that can't be turned off
- 📏 Lacks landscape mode
- 🔢 No percentage or advanced math functions

**Reported bugs**

- Sound toggle switch doesn't work to turn off sounds
- App crashes or freezes on some devices

**Requested features**

- Add percentage and other advanced math functions
- Allow landscape mode
- Add option to turn off button sounds


### One Hand Simple Calculator

[App page](https://appshunter.io/ios/app/one-hand-simple-calculator/id1527524512)

This utility app offers a calculator designed for one-handed operation. Easily adjust button placement for left or right-hand use, resize keys, and visualize calculations. Save history and utilize a simple memo function.

**Highlights:** One-handed operation with adjustable key placement, Adjustable calculator key size, Formula visualization, Calculation history saving, Simple memo field, Theme color customization

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Calculator free?

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

### Is One Hand Simple Calculator free?

One Hand Simple Calculator is free to download, with in-app purchases available.

### Which has better reviews, Calculator or One Hand Simple Calculator?

One Hand Simple Calculator is rated higher. Calculator averages 4.7 out of 5 from 916 ratings, while One Hand Simple Calculator averages 4.7 from 30 ratings.

### Do Calculator or One Hand Simple Calculator have ads?

Both Calculator and One Hand Simple Calculator show ads.

### Which is updated more often, Calculator or One Hand Simple Calculator?

Calculator ships an update every 13 months, and One Hand Simple Calculator every 3 weeks. Most recently, Calculator was updated on November 1, 2026 and One Hand Simple Calculator 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.*