# Unit Converter ++ vs Scientific Calqon

The clearest difference is in-app purchases: Unit Converter ++ at none against Scientific Calqon's 2. Unit Converter ++ also leads on iOS requirement (11.0 vs 16.0). Scientific Calqon's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Scientific Calqon sells 2 in-app purchases, starting at $2.99 per month. Unit Converter ++ asks for nothing beyond the download.

## The numbers

| Metric | Unit Converter ++ | Scientific Calqon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (10 ratings)](https://appshunter.io/ios/app/unit-converter-plus-plus/id911329028/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | — |
| Monetization | Ad-supported | — |
| Size | 6 MB | 1 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nirav Patel](https://appshunter.io/developer/787086013) | [NeuraPBX LLC](https://appshunter.io/developer/6789758670) |

## What reviewers say

### Unit Converter ++

[App page](https://appshunter.io/ios/app/unit-converter-plus-plus/id911329028)

Easily convert between various units of measurement for length, weight, temperature, volume, and more. This offline tool is designed for travelers, students, and professionals needing quick conversions.

**Highlights:** Converts length, weight, temperature, volume, and more, Supports numerous units of measurement, Works offline, Useful for travelers, students, and professionals, Covers speed, area, pressure, power, and energy units

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

**In-app purchases:** none


### Scientific Calqon

[App page](https://appshunter.io/ios/app/scientific-calqon/id6792982120)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calqon Pro Monthly | $2.99 | per month |
| Calqon Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is Unit Converter ++ free?

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

### Is Scientific Calqon free?

Scientific Calqon is free to download, with in-app purchases available.

### Do Unit Converter ++ or Scientific Calqon have ads?

Unit Converter ++ shows ads; Scientific Calqon 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.*