# Unit Converter Calculator Pro vs CTEA

The clearest difference is in-app purchases: CTEA at none against Unit Converter Calculator Pro's 4. CTEA also leads on ads (none vs shown). Unit Converter Calculator Pro's advantage is iOS requirement (13.0 vs 15.5). On price and device support there is nothing between them.

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

## The numbers

| Metric | Unit Converter Calculator Pro | CTEA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (992 ratings)](https://appshunter.io/ios/app/unit-converter-calculator-pro/id1343845631/reviews)** | — |
| Number of ratings | **992** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 118 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rome Rock LLC](https://appshunter.io/developer/1190244007) | [The Canadian Transportation Equipment Association](https://appshunter.io/developer/1764149269) |

## What reviewers say

### 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


### CTEA

[App page](https://appshunter.io/ios/app/ctea/id6789204191)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter Calculator Pro free?

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

### Is CTEA free?

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

### Do Unit Converter Calculator Pro or CTEA have ads?

Unit Converter Calculator Pro shows ads; CTEA 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.*