# Converter vs Unit Converter

The clearest difference is in-app purchases: Converter at none against Unit Converter's 1. Converter also leads on ads (none vs shown) and ratings volume (897 vs 42). Unit Converter's advantage is update cadence (weekly vs every 2 months). On price, rating and review sentiment there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Converter against 5.0 for Unit Converter. That said, the two scores are not equally well evidenced: Converter has 897 ratings behind it against 42, so its average is the more settled of the two. Written reviews are what separate them: 96% of Converter's written reviews are positive against 100% of Unit Converter's.

Converter ships an update every 2 months, Unit Converter weekly. The most recent releases landed on September 21, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | Converter | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (897 ratings)](https://appshunter.io/ios/app/converter-universal-conversion/id423521445/reviews) | **[5.0 (42 ratings)](https://appshunter.io/ios/app/unit-converter-omniconvert/id1602930764/reviews)** |
| Number of ratings | **897** | 42 |
| Positive reviews | 96.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 35 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Jonathan Chen](https://appshunter.io/developer/1602930766) |

## What reviewers say

### Converter

[App page](https://appshunter.io/ios/app/converter-universal-conversion/id423521445)

This app offers a comprehensive unit and hardness conversion tool with an easy-to-use interface. It includes currency conversion with updated exchange rates, over 300 engineering and scientific units, and a specialized hardness converter. Additional features like timezone conversion, pace calculation, and a standard calculator enhance its utility.

**Highlights:** Currency converter with live exchange rates, Over 300 engineering and scientific units, Specialized hardness converter, Timezone conversion, Running pace calculator, Integrated standard calculator, Conversion history log

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate and fast conversions
- 💡 Comprehensive coverage of units and categories
- 🔒 No ads or hidden fees
- 💡 Useful currency converter

**What reviewers complain about**

- 🐛 Currency conversion rates can be outdated
- 🔍 Difficult to find specific conversions due to large number of options
- 💡 Lack of ability to set favorite conversions as default

**Reported bugs**

- Occasional crashes on startup for non-English/German users
- Conversion from meters to feet does not show inches

**Requested features**

- Add fuel efficiency conversions
- Allow users to set favorite conversions as default
- Improve currency conversion rate updates


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-omniconvert/id1602930764)

This app provides a comprehensive suite of tools for unit and currency conversions, along with various calculators and scientific constants. It offers real-time exchange rates, works offline, and supports a wide range of categories. Enjoy a user-friendly experience with features like dark mode and no conversion limits.

**Highlights:** Unit conversions, Currency conversions, Real-time exchange rates, Offline functionality, Variety of calculators, Scientific constants, Dark mode

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OmniConvert Pro | $2.99 | one-time |


## Frequently asked questions

### Is Converter free?

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

### Is Unit Converter free?

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

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

Unit Converter is rated higher. Converter averages 4.9 out of 5 from 897 ratings, while Unit Converter averages 5.0 from 42 ratings.

### Do Converter or Unit Converter have ads?

Unit Converter shows ads; Converter does not.

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

Converter ships an update every 2 months, and Unit Converter weekly. Most recently, Converter was updated on September 21, 2026 and Unit Converter on June 8, 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.*