# Conversion Calculator Units vs My Unit Conversion

The clearest difference is in-app purchases: My Unit Conversion at none against Conversion Calculator Units's 1. My Unit Conversion also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). Conversion Calculator Units's advantage is update cadence (every 2 months vs every 12 months). On price, review sentiment and device support there is nothing between them.

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

Conversion Calculator Units ships an update every 2 months, My Unit Conversion every 12 months. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | My Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews)** | — |
| Number of ratings | **5K** | — |
| Positive reviews | **82.1% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 37 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Mark Timmings](https://appshunter.io/developer/1583590476) |

## 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


### My Unit Conversion

[App page](https://appshunter.io/ios/app/my-unit-conversion/id1600275661)

Easily convert units within various categories like length, mass, and temperature. This free application handles decimal conversions and is ad-free, offering a straightforward utility for everyday needs.

**Highlights:** Unit conversion within categories, Supports decimals, Ad-free experience, Multiple categories supported, Simple and straightforward design

**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 My Unit Conversion free?

My Unit Conversion is free to download, with no in-app purchases.

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

Conversion Calculator Units shows ads; My Unit Conversion does not.

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

Conversion Calculator Units ships an update every 2 months, and My Unit Conversion every 12 months. Most recently, Conversion Calculator Units was updated on September 25, 2026 and My Unit Conversion on June 1, 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.*