# The Converter vs All Unit Conversion

The clearest difference is in-app purchases: All Unit Conversion at none against The Converter's 1. All Unit Conversion also leads on rating (4.8 vs 4.5). The Converter's advantage is review sentiment (75% vs 50%) and device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

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

All Unit Conversion holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 21 and 29 respectively. Written reviews complicate that: 75% of The Converter's written reviews are positive against 50% of All Unit Conversion's, so the app with the better star average is not the one people write more warmly about.

The Converter ships an update every 6 weeks, All Unit Conversion every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | The Converter | All Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (21 ratings)](https://appshunter.io/ios/app/the-converter/id286911289/reviews) | **[4.8 (29 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews)** |
| Number of ratings | 21 | **29** |
| Positive reviews | **75.3% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 22 MB |
| Requires iOS | **7.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Kofman](https://appshunter.io/developer/286911292) | [Tiago Do Couto](https://appshunter.io/developer/1291604717) |

## What reviewers say

### The Converter

[App page](https://appshunter.io/ios/app/the-converter/id286911289)

This app offers a comprehensive unit and currency converter with over 1500 units across 65 categories. It features advanced search, customization, and two conversion modes for convenience, performing calculations as you type.

**Highlights:** 1500+ units across 65 categories, Advanced search and customization, Standard and Expanded conversion modes, Conversions performed as you type, Supports over 180 countries for currency

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### All Unit Conversion

[App page](https://appshunter.io/ios/app/all-unit-conversion/id1418597453)

Easily convert between various units of measurement with this free utility app. It supports conversions for length, area, volume, mass, time, digital storage, energy, and currency.

**Highlights:** Length conversion, Area conversion, Volume conversion, Mass conversion, Time conversion, Currency conversion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Converter free?

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

### Is All Unit Conversion free?

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

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

All Unit Conversion is rated higher. The Converter averages 4.5 out of 5 from 21 ratings, while All Unit Conversion averages 4.8 from 29 ratings.

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

Neither The Converter nor All Unit Conversion shows ads.

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

The Converter ships an update every 6 weeks, and All Unit Conversion every 2 months. Most recently, The Converter was updated on October 24, 2026 and All Unit Conversion on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*