# Smart Calculator vs Calculator ⁺⁻

The clearest difference is update cadence: Smart Calculator at every 5 weeks against Calculator ⁺⁻'s every 15 months. Smart Calculator also leads on review sentiment (60% vs 50%). Calculator ⁺⁻'s advantage is rating (4.7 vs 4.5). On price, ratings volume, ads 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.

Calculator ⁺⁻ holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 23 and 42 respectively. Written reviews complicate that: 60% of Smart Calculator's written reviews are positive against 50% of Calculator ⁺⁻'s, so the app with the better star average is not the one people write more warmly about.

Smart Calculator ships an update every 5 weeks, Calculator ⁺⁻ every 15 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Smart Calculator | Calculator ⁺⁻ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (23 ratings)](https://appshunter.io/ios/app/smart-calculator-smartcalc/id1474061594/reviews) | **[4.7 (42 ratings)](https://appshunter.io/ios/app/calculator/id6443813573/reviews)** |
| Number of ratings | 23 | **42** |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 15 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 9 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takao Ichimura](https://appshunter.io/developer/1474061593) | [Matrix Software Co.](https://appshunter.io/developer/1457004046) |

## What reviewers say

### Smart Calculator

[App page](https://appshunter.io/ios/app/smart-calculator-smartcalc/id1474061594)

This calculator app displays all input numbers and calculation history, allowing users to easily review and edit previous entries. It offers a large, four-line display for clear visibility and includes set memory in addition to independent memory.

**Highlights:** Four-line display, Editable input numbers, Calculation history recall, Set memory, Independent memory, Decimal separator support

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

**In-app purchases:** none


### 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 Smart Calculator free?

Smart Calculator 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, Smart Calculator or Calculator ⁺⁻?

Calculator ⁺⁻ is rated higher. Smart Calculator averages 4.5 out of 5 from 23 ratings, while Calculator ⁺⁻ averages 4.7 from 42 ratings.

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

Both Smart Calculator and Calculator ⁺⁻ show ads.

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

Smart Calculator ships an update every 5 weeks, and Calculator ⁺⁻ every 15 months. Most recently, Smart Calculator was updated on October 24, 2026 and Calculator ⁺⁻ on October 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.*