# Sci vs Calculator⁻

The clearest difference is review sentiment: Sci at 93% against Calculator⁻'s 52%. Sci also leads on ads (none vs shown) and rating (4.8 vs 4.4). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sci holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 3.9K and 3.6K respectively. Written reviews point the same way: 93% of Sci's written reviews are positive against 52% of Calculator⁻'s.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sci | Calculator⁻ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.9K ratings)](https://appshunter.io/ios/app/scipro-calculator/id684978583/reviews)** | [4.4 (3.6K ratings)](https://appshunter.io/ios/app/calculator/id1327796464/reviews) |
| Number of ratings | **3.9K** | 3.6K |
| Positive reviews | **93.1% of reviews** | 52.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 70 MB | 4 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jerry Montgomery](https://appshunter.io/developer/684978586) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### Sci

[App page](https://appshunter.io/ios/app/scipro-calculator/id684978583)

This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.

**Highlights:** Multi-mode calculator (Basic, Scientific, Programmer), Calculation history, Share results via email, Copy & paste values, Configurable display precision, Retina graphics

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and responsive
- 👍 Clean and intuitive interface
- 🔒 No ads or in-app purchases
- 💡 Versatile with basic, scientific, and programming modes
- 👍 Useful for a variety of calculations

**What reviewers complain about**

- 🐛 Occasional bugs or glitches
- 🔍 Lack of split-screen support on iPad
- 🔍 Limited keyboard input support
- 🔍 Inconsistent behavior when switching between modes

**Reported bugs**

- Incorrect calculations for certain sequences of operations
- Memory issues when dealing with large numbers or exponents
- Compatibility problems with newer iOS versions

**Requested features**

- Ability to configure number of digits displayed
- Option to change display colors or themes
- Support for more advanced programming features
- Integration with other apps or services


### 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 Sci free?

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

### Is Calculator⁻ free?

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

### Which has better reviews, Sci or Calculator⁻?

Sci is rated higher. Sci averages 4.8 out of 5 from 3.9K ratings, while Calculator⁻ averages 4.4 from 3.6K ratings.

### Do Sci or Calculator⁻ have ads?

Calculator⁻ shows ads; Sci does not.

### Which is updated more often, Sci or Calculator⁻?

Sci ships an update every 2 months, and Calculator⁻ every 2 months. Most recently, Sci was updated on October 23, 2026 and Calculator⁻ on October 24, 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.*