# Unit Converter and Calculator. vs Smart Unit Conversion

The clearest difference is update cadence: Unit Converter and Calculator. at monthly against Smart Unit Conversion's every 15 months. Smart Unit Conversion's advantage is iOS requirement (13.4 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter and Calculator. sells 1 one-off in-app purchase and Smart Unit Conversion sells 1 in-app purchase, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

Unit Converter and Calculator. ships an update monthly, Smart Unit Conversion every 15 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Unit Converter and Calculator. | Smart Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (83 ratings)](https://appshunter.io/ios/app/unit-converter-and-calculator/id1559358634/reviews)** | — |
| Number of ratings | **83** | — |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 15 months |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 41 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Kemal Bakacak](https://appshunter.io/developer/1475963902) | [Yui Lau](https://appshunter.io/developer/1791465155) |

## What reviewers say

### Unit Converter and Calculator.

[App page](https://appshunter.io/ios/app/unit-converter-and-calculator/id1559358634)

Effortlessly perform a vast array of unit conversions with this comprehensive mobile application. It offers real-time, accurate results across over 70 categories and 1450 units, featuring a user-friendly design and offline access.

**Highlights:** Real-time conversions, Over 70 categories, More than 1450 units, Offline access, User-friendly design, Customizable settings, Dark mode support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium, All Calculation Units | $2.99 | one-time |


### Smart Unit Conversion

[App page](https://appshunter.io/ios/app/smart-unit-conversion/id1643381985)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year | $1.99 | per year |


## Frequently asked questions

### Is Unit Converter and Calculator. free?

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

### Is Smart Unit Conversion free?

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

### Do Unit Converter and Calculator. or Smart Unit Conversion have ads?

Both Unit Converter and Calculator. and Smart Unit Conversion show ads.

### Which is updated more often, Unit Converter and Calculator. or Smart Unit Conversion?

Unit Converter and Calculator. ships an update monthly, and Smart Unit Conversion every 15 months. Most recently, Unit Converter and Calculator. was updated on October 27, 2026 and Smart Unit Conversion on October 27, 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.*