# Calculator⁻ vs One Hand Simple Calculator

The clearest difference is review sentiment: One Hand Simple Calculator at 100% against Calculator⁻'s 52%. One Hand Simple Calculator also leads on rating (4.7 vs 4.4) and update cadence (every 3 weeks vs every 2 months). Calculator⁻'s advantage is in-app purchases (none vs 1) and ratings volume (3.6K vs 30). On price, 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.

One Hand Simple Calculator holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Calculator⁻ has 3.6K ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 52% of Calculator⁻'s written reviews are positive against 100% of One Hand Simple Calculator's.

Calculator⁻ ships an update every 2 months, One Hand Simple Calculator every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calculator⁻ | One Hand Simple Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (3.6K ratings)](https://appshunter.io/ios/app/calculator/id1327796464/reviews) | **[4.7 (30 ratings)](https://appshunter.io/ios/app/one-hand-simple-calculator/id1527524512/reviews)** |
| Number of ratings | **3.6K** | 30 |
| Positive reviews | 52.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 4 MB | 41 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UniCom Technology](https://appshunter.io/developer/1270764210) | [Shigeo Fukuda](https://appshunter.io/developer/1282972116) |

## What reviewers say

### Calculator⁻

[App page](https://appshunter.io/ios/app/calculator/id1327796464)

A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.

**Highlights:** Basic arithmetic operations, Percentage calculations, Record and recall results, Customizable colors, Touch sound option

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Retro design
- 👍 Simple and straightforward

**What reviewers complain about**

- 🐛 Decimal point issues
- 🐛 Incorrect calculations
- 🐛 Broken buttons
- 🔍 Confusing button layout

**Reported bugs**

- Decimal point problem: .5 becomes 5
- Button that should be 7 shows as 9 and gives 9 when used
- Percentage button does not work correctly

**Requested features**

- Backspace button
- Percentage button that works properly
- Arrange buttons in standard calculator layout


### 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 4.4 out of 5 from 3.6K 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 2 months, and One Hand Simple Calculator every 3 weeks. Most recently, Calculator⁻ was updated on November 6, 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.*