# Conversion Calculator Units vs Weight Converter Pro

The clearest difference is ads: Weight Converter Pro at none against Conversion Calculator Units's shown. Weight Converter Pro also leads on rating (5.0 vs 4.7) and iOS requirement (13.4 vs 15.0). Conversion Calculator Units's advantage is ratings volume (5K vs 7). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Conversion Calculator Units sells 1 one-off in-app purchase and Weight Converter Pro sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Weight Converter Pro 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 7, so its average is the more settled of the two.

Conversion Calculator Units ships an update every 2 months, Weight Converter Pro every 3 months. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Weight Converter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/weight-converter-pro/id1573146448/reviews)** |
| Number of ratings | **5K** | 7 |
| Positive reviews | 82.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 1 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Anna Filobok](https://appshunter.io/developer/1613515832) |

## 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


### Weight Converter Pro

[App page](https://appshunter.io/ios/app/weight-converter-pro/id1573146448)

Easily convert between various weight units in real-time. This tool is designed for quick and hassle-free conversions, suitable for a wide range of users.

**Highlights:** Real-time conversions, Supports Stone, Pound, Ounce, Supports Kg, Gram, Milligram, Supports Microgram, Tonne, US tonne, Supports Imperial tonne, Hassle-free interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per 7 days |
| Premium Access | $1.99 | per month |
| Premium Access | $5.99 | per year |


## Frequently asked questions

### Is Conversion Calculator Units free?

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

### Is Weight Converter Pro free?

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

### Which has better reviews, Conversion Calculator Units or Weight Converter Pro?

Weight Converter Pro is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Weight Converter Pro averages 5.0 from 7 ratings.

### Do Conversion Calculator Units or Weight Converter Pro have ads?

Conversion Calculator Units shows ads; Weight Converter Pro does not.

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

Conversion Calculator Units ships an update every 2 months, and Weight Converter Pro every 3 months. Most recently, Conversion Calculator Units was updated on October 17, 2026 and Weight Converter Pro on October 3, 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.*