# Smart Unit Conversion vs Smart Unit Converter Plus

The clearest difference is in-app purchases: Smart Unit Converter Plus at none against Smart Unit Conversion's 1. Smart Unit Converter Plus also leads on ads (none vs shown). Smart Unit Conversion's advantage is iOS requirement (13.4 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Smart Unit Conversion sells 1 in-app purchase, starting at $1.99 per year. Smart Unit Converter Plus asks for nothing beyond the download.

## The numbers

| Metric | Smart Unit Conversion | Smart Unit Converter Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | — |
| Size | 41 MB | 22 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Yui Lau](https://appshunter.io/developer/1791465155) | [海彬 唐](https://appshunter.io/developer/6771846427) |

## What reviewers say

### Smart Unit Conversion

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

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### Smart Unit Converter Plus

[App page](https://appshunter.io/ios/app/smart-unit-converter-plus/id6787842603)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Unit Conversion free?

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

### Is Smart Unit Converter Plus free?

Smart Unit Converter Plus is free to download, with no in-app purchases.

### Do Smart Unit Conversion or Smart Unit Converter Plus have ads?

Smart Unit Conversion shows ads; Smart Unit Converter Plus does not.

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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.*