# Unit Converter vs All Unit Conversion

The clearest difference is in-app purchases: All Unit Conversion at none against Unit Converter's 2. All Unit Conversion also leads on ads (none vs shown) and update cadence (every 2 months vs every 7 months). Unit Converter's advantage is rating (4.8 vs 4.6). On price, ratings volume, 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. All Unit Conversion asks for nothing beyond the download.

Unit Converter holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 13 and 17 respectively.

Unit Converter ships an update every 7 months, All Unit Conversion every 2 months. The most recent releases landed on September 14, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Unit Converter | All Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/unit-converter/id1377049882/reviews)** | [4.6 (17 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews) |
| Number of ratings | 13 | **17** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 22 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Tiago Do Couto](https://appshunter.io/developer/1291604717) |

## 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

**In-app purchases (2)**

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


### All Unit Conversion

[App page](https://appshunter.io/ios/app/all-unit-conversion/id1418597453)

Easily convert between various units of measurement with this free utility app. It supports conversions for length, area, volume, mass, time, digital storage, energy, and currency.

**Highlights:** Length conversion, Area conversion, Volume conversion, Mass conversion, Time conversion, Currency conversion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is All Unit Conversion free?

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

### Which has better reviews, Unit Converter or All Unit Conversion?

Unit Converter is rated higher. Unit Converter averages 4.8 out of 5 from 13 ratings, while All Unit Conversion averages 4.6 from 17 ratings.

### Do Unit Converter or All Unit Conversion have ads?

Unit Converter shows ads; All Unit Conversion does not.

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

Unit Converter ships an update every 7 months, and All Unit Conversion every 2 months. Most recently, Unit Converter was updated on September 14, 2026 and All Unit Conversion on September 13, 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.*