# The Conversion App vs Unit converter

The clearest difference is rating: Unit converter at 4.9 against The Conversion App's 4.1. The Conversion App's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 24 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Unit converter holds the better App Store score, 4.9 against 4.1. Both are backed by a comparable volume of ratings — 60 and 14 respectively.

The Conversion App ships an update every 5 weeks, Unit converter every 24 months. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | The Conversion App | Unit converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (60 ratings)](https://appshunter.io/ios/app/the-conversion-app/id1507894827/reviews) | **[4.9 (14 ratings)](https://appshunter.io/ios/app/unit-converter-convert-unit/id1582803086/reviews)** |
| Number of ratings | **60** | 14 |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 24 months |
| Monetization | **Free** | Ad-supported |
| Size | 17 MB | 7 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sparrow Development LLC](https://appshunter.io/developer/1291798088) | [Deepak Jalwa](https://appshunter.io/developer/1809904290) |

## What reviewers say

### 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


### Unit converter

[App page](https://appshunter.io/ios/app/unit-converter-convert-unit/id1582803086)

This application offers a straightforward and efficient way to convert various units. It features a simple interface for quick conversions and allows users to save their conversion history for future reference.

**Highlights:** Simple unit conversion, Quick conversion tool, Save conversion history, Intuitive UI, Elegant design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Conversion App free?

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

### Is Unit converter free?

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

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

Unit converter is rated higher. The Conversion App averages 4.1 out of 5 from 60 ratings, while Unit converter averages 4.9 from 14 ratings.

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

Unit converter shows ads; The Conversion App does not.

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

The Conversion App ships an update every 5 weeks, and Unit converter every 24 months. Most recently, The Conversion App was updated on September 18, 2026 and Unit converter on June 4, 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.*