# Conversion Calculator Units vs Calculator

The clearest difference is in-app purchases: Calculator at none against Conversion Calculator Units's 1. Calculator also leads on update cadence (every 2 weeks vs every 2 months) and rating (5.0 vs 4.7). Conversion Calculator Units's advantage is ratings volume (5K vs 1). On price, ads and device support there is nothing between them.

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

Calculator holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 1, so its average is the more settled of the two.

Conversion Calculator Units ships an update every 2 months, Calculator every 2 weeks. The most recent releases landed on September 28, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculator-unit-converter/id1586576273/reviews)** |
| Number of ratings | **5K** | 1 |
| Positive reviews | 82.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 41 MB | 32 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Apero Technologies Group](https://appshunter.io/developer/1740698764) |

## 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


### Calculator

[App page](https://appshunter.io/ios/app/calculator-unit-converter/id1586576273)

This utility app offers a comprehensive suite of calculation tools for everyday needs. It includes basic and scientific functions, unit and currency conversions, world time, health metrics, and GPA calculation. Customize your calculator experience with practical, easy-to-use features.

**Highlights:** Basic and scientific calculations, Unit conversion (length, weight, volume, etc.), Currency conversion with real-time rates, World time conversion for over 400 cities, Health calculator (BMI, BMR), GPA calculator, Customizable functions and constants

**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 Calculator free?

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

### Which has better reviews, Conversion Calculator Units or Calculator?

Calculator is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Calculator averages 5.0 from 1 ratings.

### Do Conversion Calculator Units or Calculator have ads?

Both Conversion Calculator Units and Calculator show ads.

### Which is updated more often, Conversion Calculator Units or Calculator?

Conversion Calculator Units ships an update every 2 months, and Calculator every 2 weeks. Most recently, Conversion Calculator Units was updated on September 28, 2026 and Calculator on August 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*