# Unit Converter vs Unit Conversion Calculator $

The clearest difference is in-app purchases: Unit Conversion Calculator $ at none against Unit Converter's 1. Unit Conversion Calculator $ also leads on iOS requirement (13.0 vs 15.6). Unit Converter's advantage is update cadence (weekly vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. Unit Converter sells 1 one-off in-app purchase. Unit Conversion Calculator $ asks for nothing beyond the download.

Unit Converter ships an update weekly, Unit Conversion Calculator $ every 9 months. The most recent releases landed on June 22, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Unit Converter | Unit Conversion Calculator $ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 9 months |
| Size | 34 MB | 28 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umit YILMAZ](https://appshunter.io/developer/1772563348) | [JanoGroup LLC](https://appshunter.io/developer/1781461557) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-convert-fast/id6736622331)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Unit Conversion Calculator $

[App page](https://appshunter.io/ios/app/unit-conversion-calculator/id6742060456)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is Unit Conversion Calculator $ free?

Unit Conversion Calculator $ is free to download, with no in-app purchases.

### Do Unit Converter or Unit Conversion Calculator $ have ads?

Both Unit Converter and Unit Conversion Calculator $ show ads.

### Which is updated more often, Unit Converter or Unit Conversion Calculator $?

Unit Converter ships an update weekly, and Unit Conversion Calculator $ every 9 months. Most recently, Unit Converter was updated on June 22, 2026 and Unit Conversion Calculator $ on September 12, 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.*