# Convertible: Unit Converter — Currency and Unit Converter

> Versatile unit and currency converter with extensive standard and non-standard units. (iPhone/iPad app by Efecto Pty Ltd.)

- Source: https://appshunter.io/ios/app/convertible-unit-converter/id514233370 (this page in markdown: same URL + `.md`)
- Developer: [Efecto Pty Ltd](https://appshunter.io/developer/331691709)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 12 MB
- Languages: English
- Released: 2012-04-24
- Data updated: 2026-08-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/convertible-unit-converter/id514233370/reviews.md

## What is Convertible?

Features:
• iPad split view and slide over mode for compatible devices (iOS 9+ only)
• Today Extension, view your most recent conversion (great for Currency updates)
• Elegant interface with 19 beautiful themes
• Full range of standard units for both metric (SI) and non-metric conversions
• Hundreds of non-standard units categorised for quick access: Geography, Nature, Everyday Objects, Sports, etc.
• Compound unit conversion on many units including time (e.g. hours, minutes, seconds), length, area, etc.
• Fraction input and output on some units (e.g. inches)
• URL Scheme support, automate conversions with apps such as Launch Center Pro.
• Adjustable decimal precision from 5 to 15 significant figures.
• A huge range of standard and non standard units from planck lengths to the size of the visible universe. 
• Share conversions via Twitter, Facebook, email and messaging.

Convertible helps to visualise unit conversions in ways not possible with other unit converters: compare distance in miles to the length of the Amazon River, area in square yards to the size of a football field, the possibilities are endless. 

More conversion types are being added with each release, currently Convertible can convert:
• Length
• Mass/Weight
• Area
• 161 Currencies including Bitcoin
• Energy
• Power
• Torque
• Volume
• Flow
• Pressure
• Force
• Fuel Economy
• Temperature
• Data
• Time
• Speed

 Unit conversion is also entertaining and educational thanks to the many non-standard units of measure available.

“Stands out from many other apps of its type.” - The New York Times

"Convertible is one of the most peculiar and fun iPhone apps I’ve downloaded recently." - MacStories.net 

"With customizable themes, amazing readability and an intuitive and easy to use interface, Convertible is definitely in a class of its own." - 4.5 stars, 148apps.com

## Key features

- 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

## What do users think of Convertible?

Overall sentiment: positive

**Pros**

- 💻 Excellent user interface
- ⚙️ Comprehensive set of conversion units
- 🔍 Intuitive and easy to use
- 🎨 Customizable color themes
- 🕰️ Saves last conversion
- 🚀 Fast and efficient
- 🆓 Free with no ads

**Cons**

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

**Commonly reported bugs**

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

**Most 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

## Recent user reviews (10 of 203)

All indexed reviews: https://appshunter.io/ios/app/convertible-unit-converter/id514233370/reviews.md

### 5/5 — Convertible is back!

*2026-05-20, version 4.1.2*

It's been too long!

### 5/5 — My go to for over a decade

*2026-02-03, version 4.1.2*

Even though this app isn’t maintained any longer and even disappeared from the App Store for some years, I’ve found various methods to transfer the app to all of my phones over the years because I use it so often. Been useful traveling to over 40 countries!

### 5/5 — this is very good tool

*2025-12-11, version 4.1.2*

Better than the paid ones!

### 5/5 — Still the best

*2025-12-08, version 4.1.2*

Simply the best converter out there. The design is excellent. Clean and easy to use.

### 5/5 — I like using this

*2023-02-05, version 4.1.2*

Really like the layout. Easy to find the units I am looking for and makes it quick to use

### 5/5 — Must Have

*2022-10-13, version 4.1.2*

easy, free and adless! No premium or ad removal iap! no account necessary! customizability! available on basically every iPhone! (i love it when i can find and app compatible with my 6) Although it takes a minute a two to figure out how it works, its always a handy little tool to have that you want at unexpected times. Absolute must have. I feel a unit converter should be inter grated into ios already, but this is the next best thing!! thanks developers!!

### 5/5 — Not updated

*2022-07-29, version 4.1.2*

But it doesn’t need updating because it’s already the best out there. Which other app can tell you that 1 baseball bat is equal to 16 AA batteries? Or 1 white pointer shark is equal to 21.65 bananas?

### 5/5 — Excellent app

*2022-02-07, version 4.1.2*

Simple, easy to use, versatile, no ads, all one could ever request.

### 4/5 — Best of the bunch

*2022-02-07, version 4.1.2*

A very well designed app. Elegant and uncluttered user interface. Converts from metric to imperial using fractions and decimals. No garish and irritating ads.. so far. Everything you want with nothing you don't.

### 5/5 — Donkey to Pirate-Ninja conversion - 5 stars

*2021-08-27, version 4.1.2*

What an awesome app :)

## Frequently asked questions about Convertible

### What does Convertible do?

Convertible is a versatile application designed for performing unit and currency conversions. It supports a vast array of standard and non-standard units, including length, mass, area, energy, and 161 different currencies. The app aims to make conversions visually intuitive and educational.

### What are the key features of Convertible?

Key features include a wide range of standard and non-standard units, currency conversion, compound unit conversion for units like time and length, fraction input/output for certain units, adjustable decimal precision, and an elegant, customizable interface with themes. It also supports iPad split view and a Today Extension.

### How much does Convertible cost?

Based on the provided information, the application is a paid app. There are no mentions of in-app purchases or advertisements, indicating a one-time purchase model.

### What devices is Convertible compatible with?

The app is designed for iOS devices and offers features like iPad split view and slide over mode for compatible devices running iOS 9 and later. It also provides a Today Extension for quick access to recent conversions.

### What are some common use cases for Convertible?

Common use cases include converting between metric and non-metric units for everyday tasks, performing currency exchanges, calculating scientific measurements, and even educational purposes due to the inclusion of many non-standard units. It can also be used to automate conversions with other apps via URL schemes.

## Version history (last 5 releases)

### 4.1.2 — 2018-09-25

• iOS 12 Compatibility
• Status bar is now always visible
• Minor bug fixes and improvements

### 4.1.1 — 2018-09-06

• Widget bug fix

Thanks to everyone who contacted us about this bug, we appreciate the feedback!

### 4.1.0 — 2018-09-03

* iPhone X compatibility
* minor bug fixes and improvements

### 4.0.3 — 2016-08-04

• Settings text has returned, thanks to everyone who contacted us about this bug
• Minor changes and improvements

### 4.0.2 — 2016-05-24

• Sharing crash fixed
• Minor changes and improvements

Thanks to everyone who informed us of the sharing bug, we appreciate the feedback.

Do you find Convertible useful? Please consider leaving a review if you do, it helps us a lot!

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*