# Unit Converter vs UnitDeck

The clearest difference is ads: UnitDeck at none against Unit Converter's shown. UnitDeck also leads on update cadence (every 2 weeks vs every 13 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 2 in-app purchases, starting at $4.99 per month and UnitDeck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter ships an update every 13 months, UnitDeck every 2 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Converter | UnitDeck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/unit-converter/id1377049882/reviews)** | — |
| Number of ratings | **13** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 3 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [建辉 刘](https://appshunter.io/developer/6790622804) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter/id1377049882)

This app offers a wide range of unit conversions for various measurements, from temperature to length. It features a user-friendly interface, customizable themes, and smart features that remember your frequent conversions. It also links to external apps for specialized tasks.

**Highlights:** Broad conversion spectrum, Personalizable themes, User-friendly interface, Smart features for frequent conversions, Links to specialized external apps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter | $4.99 | per month |
| Unit Converter | $39.99 | per year |


### 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 Converter free?

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

### Is UnitDeck free?

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

### Do Unit Converter or UnitDeck have ads?

Unit Converter shows ads; UnitDeck does not.

### Which is updated more often, Unit Converter or UnitDeck?

Unit Converter ships an update every 13 months, and UnitDeck every 2 weeks. Most recently, Unit Converter was updated on October 29, 2026 and UnitDeck on October 25, 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.*