# Calculator Smart vs Calculator KeyBoard

The clearest difference is rating: Calculator Smart at 4.7 against Calculator KeyBoard's 2.9. Calculator Smart also leads on ratings volume (494 vs 15) and device support (6 vs 3). Calculator KeyBoard's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Calculator Smart sells 3 one-off in-app purchases and Calculator KeyBoard sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calculator Smart holds the better App Store score, 4.7 against 2.9. That said, the two scores are not equally well evidenced: Calculator Smart has 494 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 36% of Calculator Smart's written reviews are positive against 44% of Calculator KeyBoard's, so the app with the better star average is not the one people write more warmly about.

Calculator Smart ships an update every 4 months, Calculator KeyBoard fortnightly. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calculator Smart | Calculator KeyBoard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (494 ratings)](https://appshunter.io/ios/app/calculator-smart/id698030968/reviews)** | [2.9 (15 ratings)](https://appshunter.io/ios/app/calculator-keyboard/id960902525/reviews) |
| Number of ratings | **494** | 15 |
| Positive reviews | 36.4% of reviews | **44.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 12 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Miroslav Otsedarski](https://appshunter.io/developer/450091139) | [莹 李](https://appshunter.io/developer/916322092) |

## What reviewers say

### Calculator Smart

[App page](https://appshunter.io/ios/app/calculator-smart/id698030968)

This app offers a powerful and precise calculator for everyday math and advanced scientific computations. It features a clean interface with large buttons, supporting complex equations, multiple modes, and intuitive input methods. Personalize your experience with colorful skins and custom icons.

**Highlights:** 30+ scientific operations, Degrees and Radians support, Parentheses and nested equations, Intuitive input with slide-to-delete, Copy & Paste results, Apple Watch app and Lock Screen Widget, Colorful skins and custom icons

**Features:** Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Colorful Skins and Remove Ads | $1.99 | one-time |
| Colorful Skins | $1.99 | one-time |
| Colorful Skins for Mac app | $1.99 | one-time |


### Calculator KeyBoard

[App page](https://appshunter.io/ios/app/calculator-keyboard/id960902525)

Perform calculations directly within any application without switching screens. This keyboard calculator offers a convenient way to solve problems on your iPhone or iPad. Enjoy a user-friendly interface and appealing themes that enhance your experience.

**Highlights:** Calculate within any app, Keyboard calculator functionality, Quick and easy calculations, Good layout design, Beautiful themes, Enhances user experience

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Elegant Pack | $0.99 | one-time |
| Cool Black Pack | $0.99 | one-time |
| Lemon Pack | $0.99 | one-time |
| Clean Pack | $0.99 | one-time |
| Colourful Pack | $0.99 | one-time |


## Frequently asked questions

### Is Calculator Smart free?

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

### Is Calculator KeyBoard free?

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

### Which has better reviews, Calculator Smart or Calculator KeyBoard?

Calculator Smart is rated higher. Calculator Smart averages 4.7 out of 5 from 494 ratings, while Calculator KeyBoard averages 2.9 from 15 ratings.

### Do Calculator Smart or Calculator KeyBoard have ads?

Calculator Smart shows ads; Calculator KeyBoard does not.

### Which is updated more often, Calculator Smart or Calculator KeyBoard?

Calculator Smart ships an update every 4 months, and Calculator KeyBoard fortnightly. Most recently, Calculator Smart was updated on October 20, 2026 and Calculator KeyBoard on October 15, 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.*