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Units Plus Converter - Best Unit & Currency Converting App: Imperial & Metric Conversion Calculator

By Alan Mrvica

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SWAP units by swiping or double tapping center of label

OPTIMIZED for Retina display - works on 3.5 inches and new 4 inches screens.

***Now with LIVE Currency Updates for all major currencies in the world***

Very simple and beautifully designed unit converter with 12 categories and many different units:


*Currency (155 world currencies updated every 15 min.)
*Data-computer data (byte, kilobyte, megabyte, etc.)
*Time (days, weeks, hours, etc.)
*Volume (dry and wet)

Currency exchange rates are downloaded every 5 minutes when app is open. Every download uses very small amount of data. Around 1-2kb. Internet connection required.
155 currencies available - This is all world currencies with their respective country flags.

What's New in Version 1.3

-fixed icon alignment issue
-fixed crashing if SHARE button was touched in settings
-changed significant digits to 10 (from 12) to better fit on iPhone display
-added button to rate the app in settings
-added Stones to Weight category
-added Speed of Light (vacuum), Mach number (air and water) to Speed category
-added Liters and milliliters, re-worded some units to have more clear meaning, fixed UK Barrel and Bushel for Volumes category
-added Millennium, Century, Decade, Month, Millisecond to Time category
-fixed spelling "mili" to "milli"
-UI minor corrections for iPhone display label
-fixed number formatting for all countries (now it follows iOS system-wide settings for all number formats)


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

Works perfect. Easy. Keeps track of last move.

The App works perfect for my needs. I use it mostly for converting cm to inch, USD to foreign currency, pounds to kilograms and for distance. One component I particular like is that what I selected previously stays for the next trip to that icon. Example. Most use is cm to inch. I select the icon with a ruler measure. Set the dial for cm to inch. When I easily, and I do mean easily, select that conversion, the dial stays there until I return again. Very cool.

It also has a fast, one gray button, move to switch the other way around....inch to cm. I tried a few other Apps. This is the best. The selection keys/icons are nice for my fat fingers on an iPad mini.

Gold stars. This one works like promised in the description.

Simple and so useful.

We are building a house in a country that uses the metric system. (ie any place except the US). Such a useful app as we are working with our architects. The currency converter is also a bonus. I paid the $2 because you can hit the ads on the bottom very easily and it can be annoying. If this is an important tool for you, pay for it. This developer deserves it.


Google showed Converter Plus has high reviews and I ordered the purchased version. I cannot even find the basic functions like how many oz in one lb. I then found Units Plus Converter and download the free version - lesson learned from Converter Plus (don't buy before try it first), then I'm really pleased. It's a super smart design. Then I purchased the ad-free version.

Units Plus Converter - Best Unit & Currency Converting App: Imperial & Metric Conversion Calculator
View In iTunes
This app is designed for both iPhone and iPad
  • $1.99
  • Category: Utilities
  • Updated: Apr 18, 2013
  • Version: 1.3
  • Size: 1.6 MB
  • Language: English
  • Seller: Alan Mrvica

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

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