# Conversion Calculator Units vs Conversion Calculator

The clearest difference is ads: Conversion Calculator at none against Conversion Calculator Units's shown. Conversion Calculator also leads on review sentiment (100% vs 82%). Conversion Calculator Units's advantage is ratings volume (5K vs 157) and iOS requirement (15.0 vs 17.0). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Conversion Calculator Units sells 1 one-off in-app purchase and Conversion Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Conversion Calculator Units against 4.8 for Conversion Calculator. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 157, 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 100% of Conversion Calculator's.

Conversion Calculator Units ships an update every 2 months, Conversion Calculator every 5 weeks. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) | **[4.8 (157 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews)** |
| Number of ratings | **5K** | 157 |
| Positive reviews | 82.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 7 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## 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


### Conversion Calculator

[App page](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523)

Easily convert between metric and imperial units for weight, length, temperature, area, and time. This app offers precise, fast results with a clean interface, working offline for daily, travel, school, or work needs.

**Highlights:** Metric and imperial unit conversion, Weight, length, temperature, area, time, Offline functionality, Precise and fast results, Clean and minimal interface, Over 100 measurement types

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access forever | $8.99 | one-time |


## Frequently asked questions

### Is Conversion Calculator Units free?

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

### Is Conversion Calculator free?

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

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

Conversion Calculator is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Conversion Calculator averages 4.8 from 157 ratings.

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

Conversion Calculator Units shows ads; Conversion Calculator does not.

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

Conversion Calculator Units ships an update every 2 months, and Conversion Calculator every 5 weeks. Most recently, Conversion Calculator Units was updated on October 13, 2026 and Conversion Calculator on October 9, 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.*