# Convertible vs All Unit Conversion

Convertible and All Unit Conversion both sit at 4.8 stars, but that hides the real split: 89% of Convertible's written reviews are positive against 50% of All Unit Conversion's. Convertible also leads on device support (3 vs 1) and ratings volume (101 vs 29). All Unit Conversion's advantage is monetization model (free vs paid). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for Convertible against 4.8 for All Unit Conversion. Both are backed by a comparable volume of ratings — 101 and 29 respectively. Written reviews are what separate them: 89% of Convertible's written reviews are positive against 50% of All Unit Conversion's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Convertible | All Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (101 ratings)](https://appshunter.io/ios/app/convertible-unit-converter/id514233370/reviews) | **[4.8 (29 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews)** |
| Number of ratings | **101** | 29 |
| Positive reviews | **89.2% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 12 MB | 22 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Efecto Pty Ltd](https://appshunter.io/developer/331691709) | [Tiago Do Couto](https://appshunter.io/developer/1291604717) |

## What reviewers say

### Convertible

[App page](https://appshunter.io/ios/app/convertible-unit-converter/id514233370)

This app offers a comprehensive unit and currency conversion tool with a visually appealing interface and extensive unit options. It supports standard and non-standard units, compound conversions, and fraction input, making it versatile for various needs.

**Highlights:** Extensive standard and non-standard unit conversions, Currency conversion with 161 currencies, Compound unit conversion, Fraction input and output, Adjustable decimal precision, Elegant interface with themes, iPad split view and Today Extension support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💻 Excellent user interface
- ⚙️ Comprehensive set of conversion units
- 🔍 Intuitive and easy to use
- 🎨 Customizable color themes
- 🕰️ Saves last conversion

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Navigation can be confusing at times
- 🔢 Lack of support for custom units

**Reported bugs**

- Conversion results not always accurate
- Crashes when trying to share conversion results

**Requested features**

- Add support for more measurement categories (e.g. fuel consumption, flow rate)
- Implement a search function to easily find units
- Provide a widget for quick access to conversions
- Add support for more languages


### 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 Convertible free?

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

### Is All Unit Conversion free?

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

### Which has better reviews, Convertible or All Unit Conversion?

All Unit Conversion is rated higher. Convertible averages 4.8 out of 5 from 101 ratings, while All Unit Conversion averages 4.8 from 29 ratings.

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

Neither Convertible nor All Unit Conversion shows ads.

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

Convertible ships an update every 2 months, and All Unit Conversion every 2 months. Most recently, Convertible was updated on October 23, 2026 and All Unit Conversion on October 24, 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.*