# Unit Converters vs UnitDeck

The clearest difference is in-app purchases: Unit Converters at none against UnitDeck's 1. Unit Converters also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. UnitDeck sells 1 one-off in-app purchase. Unit Converters asks for nothing beyond the download.

## The numbers

| Metric | Unit Converters | UnitDeck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 41 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stage Coding](https://appshunter.io/developer/1637068135) | [建辉 刘](https://appshunter.io/developer/6790622804) |

## What reviewers say

### Unit Converters

[App page](https://appshunter.io/ios/app/unit-converters-calcon/id1619683639)

**Features:** macOS Compatibility

**In-app purchases:** none


### UnitDeck

[App page](https://appshunter.io/ios/app/unitdeck-work-unit-converter/id6792440865)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnitDeck Pro – Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Unit Converters free?

Unit Converters is free to download, with no in-app purchases.

### Is UnitDeck free?

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

### Do Unit Converters or UnitDeck have ads?

Neither Unit Converters nor UnitDeck 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.*