# Ultimate Convertor vs Unit Converter Calculator Pro

The clearest difference is in-app purchases: Ultimate Convertor at none against Unit Converter Calculator Pro's 4. Ultimate Convertor also leads on ads (none vs shown) and review sentiment (100% vs 76%). Unit Converter Calculator Pro's advantage is ratings volume (993 vs 2) and rating (4.7 vs 4.5). On price there is nothing between them.

Both are free to download. Unit Converter Calculator Pro sells 4 one-off in-app purchases. Ultimate Convertor asks for nothing beyond the download.

Unit Converter Calculator Pro holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Unit Converter Calculator Pro has 993 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of Ultimate Convertor's written reviews are positive against 76% of Unit Converter Calculator Pro's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Ultimate Convertor | Unit Converter Calculator Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/ultimate-convertor/id862704903/reviews) | **[4.7 (993 ratings)](https://appshunter.io/ios/app/unit-converter-calculator-pro/id1343845631/reviews)** |
| Number of ratings | 2 | **993** |
| Positive reviews | **100.0% of reviews** | 76.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 37 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Razoogi Abd Ali](https://appshunter.io/developer/828475892) | [Rome Rock LLC](https://appshunter.io/developer/1190244007) |

## What reviewers say

### Ultimate Convertor

[App page](https://appshunter.io/ios/app/ultimate-convertor/id862704903)

This utility app offers a wide range of unit conversion categories, including length, area, volume, mass, and more. Users can favorite frequently used conversions for quick access and easily swap between units. It provides a comprehensive tool for various measurement needs.

**Highlights:** Multiple conversion categories, Extensive unit options, Favorite conversions for fast access, Swap selected conversion units, Delete units from favorites, Supports length, area, volume, mass, and more

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

**In-app purchases:** none


### Unit Converter Calculator Pro

[App page](https://appshunter.io/ios/app/unit-converter-calculator-pro/id1343845631)

Easily convert between metric and imperial units for a wide range of measurements including area, speed, temperature, and weight. Supports scientific prefixes and offers a history of your conversions. No internet connection required.

**Highlights:** Metric to Imperial unit conversion, Imperial to Metric unit conversion, Area, speed, temperature, volume, weight conversions, Scientific prefixes support, Conversion history, Offline functionality

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock Themes | $2.99 | one-time |
| Remove Ads & Unlock Themes 1 | $4.99 | one-time |
| Remove Ads & Unlock Themes 2 | $6.99 | one-time |
| Remove Ads & Unlock Themes 3 | $9.99 | one-time |

**What reviewers like**

- 🚀 Easy & accurate
- 🚀 Excellent Tool
- 👍 Goog for social
- 👍 Excelente para mi trabajo
- 👍 Sencillez

**What reviewers complain about**

- 👎 Hard to use interface
- 👎 Lacks pressure units
- 👎 No reverse button
- 👎 Metric to imperial format not user-friendly

**Reported bugs**

- 🐛 Changing to something else

**Requested features**

- 💡 Favorite conversations
- 💡 Color-coded sections
- 💡 Money conversion


## Frequently asked questions

### Is Ultimate Convertor free?

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

### Is Unit Converter Calculator Pro free?

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

### Which has better reviews, Ultimate Convertor or Unit Converter Calculator Pro?

Unit Converter Calculator Pro is rated higher. Ultimate Convertor averages 4.5 out of 5 from 2 ratings, while Unit Converter Calculator Pro averages 4.7 from 993 ratings.

### Do Ultimate Convertor or Unit Converter Calculator Pro have ads?

Unit Converter Calculator Pro shows ads; Ultimate Convertor does not.

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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.*