# Simple Calculator. + vs Calculator⁻

The clearest difference is price: Calculator⁻ at Free against Simple Calculator. +'s $1.99. Calculator⁻ also leads on ratings volume (3.6K vs 147) and iOS requirement (13.0 vs 15.6). Simple Calculator. +'s advantage is ads (none vs shown) and rating (4.7 vs 4.4). On update cadence, in-app purchases and device support there is nothing between them.

Calculator⁻ is free to download; Simple Calculator. + costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

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 147, so its average is the more settled of the two. Written reviews point the same way: 73% of Simple Calculator. +'s written reviews are positive against 52% of Calculator⁻'s.

Simple Calculator. + ships an update every 3 months, Calculator⁻ every 2 months. Both last shipped on September 23, 2026.

## The numbers

| Metric | Simple Calculator. + | Calculator⁻ |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (147 ratings)](https://appshunter.io/ios/app/simple-calculator-plus/id1324927779/reviews)** | [4.4 (3.6K ratings)](https://appshunter.io/ios/app/calculator/id1327796464/reviews) |
| Number of ratings | 147 | **3.6K** |
| Positive reviews | **72.7% of reviews** | 52.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 1 MB | 4 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [tasser gyati](https://appshunter.io/developer/1324926550) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### Simple Calculator. +

[App page](https://appshunter.io/ios/app/simple-calculator-plus/id1324927779)

This app offers a straightforward and dependable calculator for iPhone and iPad. It includes advanced features like tax calculation, cost/selling price/margin calculations, and memory operations. A free version is available to try before purchasing.

**Highlights:** 12-digit display, Tax calculation, Cost, selling price, and gross margin calculations, Memory operations, Grand total (GT), Percentage calculation

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Simple Calculator. + free?

Simple Calculator. + costs $1.99, with no in-app purchases.

### Is Calculator⁻ free?

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

### Which has better reviews, Simple Calculator. + or Calculator⁻?

Simple Calculator. + is rated higher. Simple Calculator. + averages 4.7 out of 5 from 147 ratings, while Calculator⁻ averages 4.4 from 3.6K ratings.

### Do Simple Calculator. + or Calculator⁻ have ads?

Calculator⁻ shows ads; Simple Calculator. + does not.

### Which is updated more often, Simple Calculator. + or Calculator⁻?

Simple Calculator. + ships an update every 3 months, and Calculator⁻ every 2 months. Most recently, Simple Calculator. + was updated on September 23, 2026 and Calculator⁻ on September 23, 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.*