# Unit Converter vs ConvertX

The clearest difference is ads: Unit Converter at none against ConvertX's shown. Unit Converter also leads on update cadence (every 2 weeks vs every 7 months). ConvertX's advantage is iOS requirement (15.6 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter sells 3 in-app purchases, starting at $0.99 per month and ConvertX 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 2 weeks, ConvertX every 7 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Unit Converter | ConvertX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Size | 3 MB | 35 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Michiel de Gooijer](https://appshunter.io/developer/1849863849) | [Dhaval Panasara](https://appshunter.io/developer/1753452519) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-pro/id6758503595)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $3.99 | per year |
| Small Tip | $0.99 | one-time |


### ConvertX

[App page](https://appshunter.io/ios/app/convertx-unit-converter/id6760885403)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LifeTime Premium | $4.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

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

### Is ConvertX free?

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

### Do Unit Converter or ConvertX have ads?

ConvertX shows ads; Unit Converter does not.

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

Unit Converter ships an update every 2 weeks, and ConvertX every 7 months. Most recently, Unit Converter was updated on October 31, 2026 and ConvertX on October 31, 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.*