# Unit Converter vs The Conversion App

The clearest difference is rating: Unit Converter at 4.8 against The Conversion App's 4.1. The Conversion App's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Unit Converter sells 2 in-app purchases, starting at $4.99 per month. The Conversion App asks for nothing beyond the download.

Unit Converter holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 13 and 60 respectively.

Unit Converter ships an update every 7 months, The Conversion App every 5 weeks. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Unit Converter | The Conversion App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/unit-converter/id1377049882/reviews)** | [4.1 (60 ratings)](https://appshunter.io/ios/app/the-conversion-app/id1507894827/reviews) |
| Number of ratings | 13 | **60** |
| Positive reviews | — | 45.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 17 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Sparrow Development LLC](https://appshunter.io/developer/1291798088) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter/id1377049882)

This app offers a wide range of unit conversions for various measurements, from temperature to length. It features a user-friendly interface, customizable themes, and smart features that remember your frequent conversions. It also links to external apps for specialized tasks.

**Highlights:** Broad conversion spectrum, Personalizable themes, User-friendly interface, Smart features for frequent conversions, Links to specialized external apps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter | $4.99 | per month |
| Unit Converter | $39.99 | per year |


### The Conversion App

[App page](https://appshunter.io/ios/app/the-conversion-app/id1507894827)

This utility app offers a simple and powerful way to perform various unit conversions. It supports a wide range of categories and allows users to request new conversions to be added. Available on iPhone and iPad, it's designed for ease of use.

**Highlights:** Area conversion, Data conversion, Length conversion, Speed conversion, Time conversion, Volume conversion, Weight conversion

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is The Conversion App free?

The Conversion App is free to download, with no in-app purchases.

### Which has better reviews, Unit Converter or The Conversion App?

Unit Converter is rated higher. Unit Converter averages 4.8 out of 5 from 13 ratings, while The Conversion App averages 4.1 from 60 ratings.

### Do Unit Converter or The Conversion App have ads?

Unit Converter shows ads; The Conversion App does not.

### Which is updated more often, Unit Converter or The Conversion App?

Unit Converter ships an update every 7 months, and The Conversion App every 5 weeks. Most recently, Unit Converter was updated on September 14, 2026 and The Conversion App on September 18, 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.*