# Conversion Calculator Units vs Unit Converter and Calc

The clearest difference is in-app purchases: Unit Converter and Calc at none against Conversion Calculator Units's 1. Conversion Calculator Units's advantage is ratings volume (5K vs 4). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Conversion Calculator Units sells 1 one-off in-app purchase. Unit Converter and Calc asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Conversion Calculator Units against 4.8 for Unit Converter and Calc. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 82% of Conversion Calculator Units's written reviews are positive against 80% of Unit Converter and Calc's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Unit Converter and Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/unit-converter-and-calc/id1617794152/reviews)** |
| Number of ratings | **5K** | 4 |
| Positive reviews | **82.1% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 41 MB | 31 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Qtonz infosoft private limited](https://appshunter.io/developer/1548474074) |

## What reviewers say

### 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


### Unit Converter and Calc

[App page](https://appshunter.io/ios/app/unit-converter-and-calc/id1617794152)

This app offers a comprehensive suite of conversion tools for everyday needs, including units of length, weight, temperature, and currency. It also functions as a scientific and arithmetic calculator, with specialized calculators for age, EMI, BMI, and more.

**Highlights:** Unit conversion for length, weight, temperature, volume, time, Scientific and arithmetic calculator, Real-time currency and cryptocurrency converter, Age, EMI, BMI, Percentage, GST calculators, History display for previous calculations, Floating calculator for multitasking

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

**In-app purchases:** none


## Frequently asked questions

### Is Conversion Calculator Units free?

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

### Is Unit Converter and Calc free?

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

### Which has better reviews, Conversion Calculator Units or Unit Converter and Calc?

Unit Converter and Calc is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Unit Converter and Calc averages 4.8 from 4 ratings.

### Do Conversion Calculator Units or Unit Converter and Calc have ads?

Both Conversion Calculator Units and Unit Converter and Calc show ads.

### Which is updated more often, Conversion Calculator Units or Unit Converter and Calc?

Conversion Calculator Units ships an update every 2 months, and Unit Converter and Calc every 2 months. Most recently, Conversion Calculator Units was updated on October 30, 2026 and Unit Converter and Calc 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.*