# Unit Converter vs Unit Converter

The clearest difference is update cadence: Unit Converter at weekly against Unit Converter's every 3 months. Unit Converter's advantage is review sentiment (76% vs 57%) and ratings volume (193K vs 14K). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Unit Converter sells 12 in-app purchases, starting at $2.49 per month and Unit Converter sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Unit Converter holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Unit Converter has 193K ratings behind it against 14K, so its average is the more settled of the two. Written reviews point the same way: 57% of Unit Converter's written reviews are positive against 76% of Unit Converter's.

Unit Converter ships an update weekly, Unit Converter every 3 months. Both last shipped on September 24, 2026.

## The numbers

| Metric | Unit Converter | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (14K ratings)](https://appshunter.io/ios/app/unit-converter-convert-all/id417794697/reviews) | **[4.8 (193K ratings)](https://appshunter.io/ios/app/unit-converter-best-unit-app/id623691968/reviews)** |
| Number of ratings | 14K | **193K** |
| Positive reviews | 56.6% of reviews | **75.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#108** |
| Size | 69 MB | 13 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [oWorld Software](https://appshunter.io/developer/291192797) | [Alan Mrvica](https://appshunter.io/developer/593306623) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-convert-all/id417794697)

Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.

**Highlights:** Real-time currency conversions, Extensive unit categories (weight, temp, length, volume, etc.), Simple and intuitive interface, Supports international currencies, Includes time, speed, and IT units, Unlockable premium units

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $2.49 | per month |
| Unit Converter Premium - 1y | $8.99 | per year |
| Get premium | $14.99 | per year |
| Premium 1 year | $14.99 | per year |
| Conversion Calculator Pro - 1y | $19.99 | per year |
| Conversion clothing sizes 1y | $0.99 | one-time |
| Conversion liquids/volumes 1y | $0.99 | one-time |
| Remove Ads 1y | $0.99 | one-time |
| Conversion angles, forces 1y | $1.99 | one-time |
| Conversion of shoe sizes 1y | $1.99 | one-time |
| Currency Converter 1y | $1.99 | one-time |
| Convert all units + No ads | $29.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Comprehensive unit conversions
- 👍 Helpful app
- 👍 Practical for engineering and mechanics
- 👍 Intuitive interface

**What reviewers complain about**

- 🔍 Too many ads
- 🔍 Ads make the app unusable
- 🔍 Ads are invasive and disrupt user experience
- 💰 Expensive subscription for ad-free version
- 🐛 Crashes and stability issues

**Reported bugs**

- Conversion calculations are sometimes inaccurate
- Inability to enter decimal values in some conversions
- Compatibility issues with newer devices

**Requested features**

- Dark mode option
- Favorites/frequently used units
- Improved ad-supported free version
- More customization options


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-best-unit-app/id623691968)

**Currently charting:** #108 Top Grossing · Travel (US App Store)

Easily convert between a wide range of units across 20 categories, including length, weight, temperature, and more. Features live currency updates for 155 world currencies, refreshed daily. Designed for simplicity and visual appeal.

**Highlights:** 20 conversion categories, Live currency updates, 155 world currencies, Daily exchange rate refresh, Simple and beautiful design, Swap units functionality

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| Premium | $6.99 | per month |
| Premium | $24.99 | per year |
| Premium | $34.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Comprehensive conversions
- 💡 Useful for travel and cooking
- 🚀 Quick and efficient
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Limited character input
- 🐛 Difficulty with negative numbers
- 💡 Lack of ability to quickly switch between conversions
- 💰 Pro version not worth the cost

**Reported bugs**

- Forced 5-star review prompt
- Inaccurate weight/stone conversion

**Requested features**

- Add calorie/kJ conversion
- Allow negative number input
- Improve ability to quickly switch between conversions


## Frequently asked questions

### Is Unit Converter free?

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

### Is Unit Converter free?

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

### Which has better reviews, Unit Converter or Unit Converter?

Unit Converter is rated higher. Unit Converter averages 4.6 out of 5 from 14K ratings, while Unit Converter averages 4.8 from 193K ratings.

### Do Unit Converter or Unit Converter have ads?

Both Unit Converter and Unit Converter show ads.

### Which is updated more often, Unit Converter or Unit Converter?

Unit Converter ships an update weekly, and Unit Converter every 3 months. Most recently, Unit Converter was updated on September 24, 2026 and Unit Converter on September 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.*