# Mila's Unit Converter PRO vs Conversion Calculator Units

The clearest difference is price: Conversion Calculator Units at Free against Mila's Unit Converter PRO's $9.99. Conversion Calculator Units also leads on ratings volume (5K vs 1K) and iOS requirement (15.0 vs 17.6). Mila's Unit Converter PRO's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, review sentiment and device support there is nothing between them.

Conversion Calculator Units is free to download; Mila's Unit Converter PRO costs $9.99 up front. Conversion Calculator Units sells 1 one-off in-app purchase. Mila's Unit Converter PRO asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Mila's Unit Converter PRO against 4.7 for Conversion Calculator Units. Both are backed by a comparable volume of ratings — 1K and 5K respectively. Written reviews are what separate them: 90% of Mila's Unit Converter PRO's written reviews are positive against 82% of Conversion Calculator Units's.

Mila's Unit Converter PRO ships an update every 4 days, Conversion Calculator Units every 2 months. Both last shipped on September 22, 2026.

## The numbers

| Metric | Mila's Unit Converter PRO | Conversion Calculator Units |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.8 (1K ratings)](https://appshunter.io/ios/app/milas-unit-converter-pro/id407157906/reviews)** | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) |
| Number of ratings | 1K | **5K** |
| Positive reviews | **89.6% of reviews** | 82.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 5 MB | 41 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Scott DeSapio](https://appshunter.io/developer/403110618) | [RV AppStudios LLC](https://appshunter.io/developer/340181308) |

## What reviewers say

### Mila's Unit Converter PRO

[App page](https://appshunter.io/ios/app/milas-unit-converter-pro/id407157906)

Effortlessly convert between hundreds of units across 26 essential categories with this precision calculator. Designed for speed and simplicity, it offers accurate results in seconds for students, professionals, and travelers alike. Enjoy offline functionality and a customizable experience.

**Highlights:** Hundreds of units across 26 categories, Metric, imperial, and specialized units, Smart conversions for temperature, fuel, and more, Customizable categories, units, and number formats, Intuitive search and offline functionality, Conversions happen as you type

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

**In-app purchases:** none


### Conversion Calculator Units

[App page](https://appshunter.io/ios/app/conversion-calculator-units/id727632233)

This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.

**Highlights:** Converts over 140 units, Supports 12 conversion categories, Customizable themes, Drag and set unit positions, Add units to favorites, Share converted units via email

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 User-friendly
- 🚀 Easy to use
- 💡 Helpful for learning metric system
- 👍 Great for conversions
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Ads disrupt usage
- 🐛 Difficult to change units
- 🐛 Lacks portrait mode
- 🐛 Upside-down orientation issues
- 🐛 Cluttered UI design

**Reported bugs**

- Ads not removed after purchase
- Incorrect unit conversions

**Requested features**

- Add pressure conversion units
- Include a basic calculator function
- Implement multi-language support
- Allow customization of unit order


## Frequently asked questions

### Is Mila's Unit Converter PRO free?

Mila's Unit Converter PRO costs $9.99, with no in-app purchases.

### Is Conversion Calculator Units free?

Conversion Calculator Units is free to download, with in-app purchases available.

### Which has better reviews, Mila's Unit Converter PRO or Conversion Calculator Units?

Mila's Unit Converter PRO is rated higher. Mila's Unit Converter PRO averages 4.8 out of 5 from 1K ratings, while Conversion Calculator Units averages 4.7 from 5K ratings.

### Do Mila's Unit Converter PRO or Conversion Calculator Units have ads?

Conversion Calculator Units shows ads; Mila's Unit Converter PRO does not.

### Which is updated more often, Mila's Unit Converter PRO or Conversion Calculator Units?

Mila's Unit Converter PRO ships an update every 4 days, and Conversion Calculator Units every 2 months. Most recently, Mila's Unit Converter PRO was updated on September 22, 2026 and Conversion Calculator Units on September 22, 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.*