# Unit Converter vs All Units

The clearest difference is rating: All Units at 5.0 against Unit Converter's 2.0. All Units also leads on update cadence (every 3 days vs every 9 months). Unit Converter's advantage is ratings volume (7 vs 1) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

All Units holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Unit Converter has 7 ratings behind it against 1, so its average is the more settled of the two.

Unit Converter ships an update every 9 months, All Units every 3 days. The most recent releases landed on September 15, 2026 and August 30, 2026 respectively.

## The numbers

| Metric | Unit Converter | All Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (7 ratings)](https://appshunter.io/ios/app/unit-converter/id1124416229/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/all-units/id1663552827/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Every 3 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 33 MB | 7 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yunus Kilinc](https://appshunter.io/developer/1093264121) | [Vladyslav Yarmak](https://appshunter.io/developer/1456545549) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter/id1124416229)

This application offers a professional and user-friendly interface for converting between various units. It supports over 300 units across more than 20 categories, including currency, temperature, and length.

**Highlights:** Impressive design, Convenient interface, Easy to use, Over 20 categories, More than 300 units, Currency conversion, Temperature conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### All Units

[App page](https://appshunter.io/ios/app/all-units/id1663552827)

This free utility app simplifies unit conversions for various measurements, saving time for technicians, students, and everyday users. It offers a wide range of conversion categories to make calculations easy and accurate.

**Highlights:** Unit conversion, Volume, Length, Mass, Temperature, Velocity, Time

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is All Units free?

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

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

All Units is rated higher. Unit Converter averages 2.0 out of 5 from 7 ratings, while All Units averages 5.0 from 1 ratings.

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

Both Unit Converter and All Units show ads.

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

Unit Converter ships an update every 9 months, and All Units every 3 days. Most recently, Unit Converter was updated on September 15, 2026 and All Units on August 30, 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.*