# Unit Converter vs All Unit Conversion

Unit Converter and All Unit Conversion both sit at 4.8 stars, but that hides the real split: 88% of Unit Converter's written reviews are positive against 50% of All Unit Conversion's. Unit Converter also leads on update cadence (weekly vs every 2 months) and ratings volume (1.5K vs 29). All Unit Conversion's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 3 in-app purchases, starting at $0.99 per month. All Unit Conversion asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Unit Converter against 4.8 for All Unit Conversion. That said, the two scores are not equally well evidenced: Unit Converter has 1.5K ratings behind it against 29, so its average is the more settled of the two. Written reviews are what separate them: 88% of Unit Converter's written reviews are positive against 50% of All Unit Conversion's.

Unit Converter ships an update weekly, All Unit Conversion every 2 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Unit Converter | All Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.5K ratings)](https://appshunter.io/ios/app/unit-converter-milas-tools/id403110615/reviews) | **[4.8 (29 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews)** |
| Number of ratings | **1.5K** | 29 |
| Positive reviews | **87.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 22 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Scott DeSapio](https://appshunter.io/developer/403110618) | [Tiago Do Couto](https://appshunter.io/developer/1291604717) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-milas-tools/id403110615)

This app offers a comprehensive unit conversion tool with over 300 units across 27 categories. It supports compound units, date calculations, and conversions between various number systems, including historical units. The interface is designed for ease of use with smart keyboards and customizable display options.

**Highlights:** 27 conversion categories, 300+ units, Compound unit support, Date calculator, Fractions and number conversions, Historical units, Customizable interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mila's Tools PRO Monthly | $0.99 | per month |
| Mila's Tools PRO Yearly | $4.99 | per year |
| Mila's Tools PRO Lifetime | $9.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and accurate conversions
- 💡 Comprehensive list of units
- 🔍 Convenient for everyday use
- ⭐ Reliable and consistent

**What reviewers complain about**

- 🐛 Scrolling issues on newer devices
- 🔍 Limited customization options
- 💰 Desire for free version to remain free

**Reported bugs**

- Crashes or freezes on some devices
- Conversion results not displaying properly

**Requested features**

- Ability to customize order of conversion units
- Addition of more specialized units (e.g. astronomical distances)
- Improved scrolling functionality on all devices


### 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?

All Unit Conversion is rated higher. Unit Converter averages 4.8 out of 5 from 1.5K ratings, while All Unit Conversion averages 4.8 from 29 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 weekly, and All Unit Conversion every 2 months. Most recently, Unit Converter was updated on November 1, 2026 and All Unit Conversion on October 24, 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.*