# All Unit Conversion vs Unit converter

The clearest difference is ads: All Unit Conversion at none against Unit converter's shown. All Unit Conversion also leads on update cadence (every 2 months vs every 24 months) and monetization model (free vs ad-supported). Unit converter's advantage is rating (4.9 vs 4.6). On price, ratings volume, 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 4.6. Both are backed by a comparable volume of ratings — 17 and 14 respectively.

All Unit Conversion ships an update every 2 months, Unit converter every 24 months. The most recent releases landed on September 13, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | All Unit Conversion | Unit converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (17 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews) | **[4.9 (14 ratings)](https://appshunter.io/ios/app/unit-converter-convert-unit/id1582803086/reviews)** |
| Number of ratings | **17** | 14 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 24 months |
| Monetization | **Free** | Ad-supported |
| Size | 22 MB | 7 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tiago Do Couto](https://appshunter.io/developer/1291604717) | [Deepak Jalwa](https://appshunter.io/developer/1809904290) |

## What reviewers say

### 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


### 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 All Unit Conversion free?

All Unit Conversion 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, All Unit Conversion or Unit converter?

Unit converter is rated higher. All Unit Conversion averages 4.6 out of 5 from 17 ratings, while Unit converter averages 4.9 from 14 ratings.

### Do All Unit Conversion or Unit converter have ads?

Unit converter shows ads; All Unit Conversion does not.

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

All Unit Conversion ships an update every 2 months, and Unit converter every 24 months. Most recently, All Unit Conversion was updated on September 13, 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.*