# Calculator vs Calculator ⁺⁻

The clearest difference is in-app purchases: Calculator ⁺⁻ at none against Calculator's 1. Calculator ⁺⁻ also leads on rating (4.7 vs 4.3) and review sentiment (50% vs 33%). Calculator's advantage is update cadence (every 3 months vs every 15 months). On price, ratings volume, ads and device support there is nothing between them.

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

Calculator ⁺⁻ holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 20 and 42 respectively. Written reviews point the same way: 33% of Calculator's written reviews are positive against 50% of Calculator ⁺⁻'s.

Calculator ships an update every 3 months, Calculator ⁺⁻ every 15 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Calculator | Calculator ⁺⁻ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/calculator-15-calculators/id1609183107/reviews) | **[4.7 (42 ratings)](https://appshunter.io/ios/app/calculator/id6443813573/reviews)** |
| Number of ratings | 20 | **42** |
| Positive reviews | 33.3% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 15 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 33 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Matrix Software Co.](https://appshunter.io/developer/1457004046) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-15-calculators/id1609183107)

This app offers a comprehensive suite of 15 calculators for everyday and scientific needs. Perform basic arithmetic, complex scientific calculations, and specialized conversions for units, taxes, loans, health, and more with accurate results.

**Highlights:** Classic and Scientific Calculations, Unit Converter (length, area, volume, etc.), Sales Tax, Tip, and Discount Calculators, Loan and Savings Calculators, Health (BMI, BMR) and Ovulation Calculators, GPA and Unit Price Calculators, Fuel Cost and Efficiency Calculators

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

**In-app purchases (1)**

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


### Calculator ⁺⁻

[App page](https://appshunter.io/ios/app/calculator/id6443813573)

This app offers both basic and scientific calculation functions for iPhone and iPad. Users can customize its appearance, view calculation history, and perform complex equations with high accuracy. It also provides real-time calculation display and adjustable touch feedback.

**Highlights:** Basic and scientific calculator modes, Over 30 scientific operations, Calculation history view, Real-time calculation display, Customizable color themes, Adjustable button touch sound/vibration, High accuracy calculations (75+ significant digits)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is Calculator ⁺⁻ free?

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

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

Calculator ⁺⁻ is rated higher. Calculator averages 4.3 out of 5 from 20 ratings, while Calculator ⁺⁻ averages 4.7 from 42 ratings.

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

Both Calculator and Calculator ⁺⁻ show ads.

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

Calculator ships an update every 3 months, and Calculator ⁺⁻ every 15 months. Most recently, Calculator was updated on November 7, 2026 and Calculator ⁺⁻ on November 7, 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.*