# units vs Unit Converter

The clearest difference is price: units at Free against Unit Converter's $5.99. units also leads on update cadence (fortnightly vs every 9 months) and iOS requirement (9.3 vs 18.5). On ads, in-app purchases and device support there is nothing between them.

units is free to download; Unit Converter costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

units ships an update fortnightly, Unit Converter every 9 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | units | Unit Converter |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 9 months |
| Size | 18 MB | 12 MB |
| Requires iOS | **9.3** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Ngo](https://appshunter.io/developer/1134969498) | [Fenuku Kekeli](https://appshunter.io/developer/1822419894) |

## What reviewers say

### units

[App page](https://appshunter.io/ios/app/units-converter/id1134969499)

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-convert-units/id6749213264)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is units free?

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

### Is Unit Converter free?

Unit Converter costs $5.99, with no in-app purchases.

### Do units or Unit Converter have ads?

Neither units nor Unit Converter shows ads.

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

units ships an update fortnightly, and Unit Converter every 9 months. Most recently, units was updated on November 2, 2026 and Unit Converter on November 8, 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.*