# Unit Converter vs B33n

The clearest difference is review sentiment: B33n at 100% against Unit Converter's 58%. B33n also leads on in-app purchases (none vs 10) and ads (none vs shown). Unit Converter's advantage is update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 10 in-app purchases, starting at $2.49 per month. B33n asks for nothing beyond the download.

Unit Converter ships an update weekly, B33n every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Unit Converter | B33n |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14K ratings)](https://appshunter.io/ios/app/unit-converter-convert-all/id417794697/reviews)** | — |
| Number of ratings | **14K** | — |
| Positive reviews | 58.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 70 MB | 46 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [oWorld Software](https://appshunter.io/developer/291192797) | [ROMEO CHALOM KUBWABO](https://appshunter.io/developer/1886508611) |

## 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, iPhone Duo support

**In-app purchases (10)**

| 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 liquids/volumes 1y | $0.99 | one-time |
| Remove Ads 1y | $0.99 | one-time |
| Conversion angles, forces 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


### B33n

[App page](https://appshunter.io/ios/app/b33n/id6809171479)

Discover trusted recommendations from friends, not strangers or algorithms. Find places in new cities or plan trips by seeing spots your friends have visited and recommend. Build your own profile of favorite places to share.

**Highlights:** Follow trusted friends, Browse recommendations by city, Save spots to a 'Want to Go' list, Tag and share your favorite places, Ask friends for recommendations, Filter recommendations by location

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is B33n free?

B33n is free to download, with no in-app purchases.

### Do Unit Converter or B33n have ads?

Unit Converter shows ads; B33n does not.

### Which is updated more often, Unit Converter or B33n?

Unit Converter ships an update weekly, and B33n every 3 weeks. Most recently, Unit Converter was updated on November 5, 2026 and B33n on October 31, 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.*