# Calculator vs Smart Unit Converter tool

The clearest difference is price: Calculator at Free against Smart Unit Converter tool's $0.99. Calculator also leads on iOS requirement (13.0 vs 16.6). Smart Unit Converter tool's advantage is in-app purchases (none vs 3). On ads and device support there is nothing between them.

Calculator is free to download; Smart Unit Converter tool costs $0.99 up front. Calculator sells 3 in-app purchases, starting at $3.99 per 7 days. Smart Unit Converter tool asks for nothing beyond the download.

## The numbers

| Metric | Calculator | Smart Unit Converter tool |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/calculatormath-solver/id6450890807/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Freemium | — |
| Size | 18 MB | 4 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 9+ | +4 |
| Developer | [文婷 冯](https://appshunter.io/developer/1862330871) | [小燕 陈](https://appshunter.io/developer/1462872555) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculatormath-solver/id6450890807)

This app offers a comprehensive suite of calculation tools, including basic, scientific, and currency conversion functions. It also features historical record storage and note-taking capabilities for convenient daily computing.

**Highlights:** Basic calculations, Scientific calculations, Currency conversion, Historical record storage, Note-taking functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zhou Member | $3.99 | per 7 days |
| Monthly membership | $4.99 | per month |
| Annual membership | $14.99 | per year |


### Smart Unit Converter tool

[App page](https://appshunter.io/ios/app/smart-unit-converter-tool/id6762502817)

**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 Smart Unit Converter tool free?

Smart Unit Converter tool costs $0.99, with no in-app purchases.

### Do Calculator or Smart Unit Converter tool have ads?

Neither Calculator nor Smart Unit Converter tool shows ads.

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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.*