SWAP units by pressing button on keypad (lower left)

OPTIMIZED for iPhone X, XS, XS Max, XR, 5, 5S, SE, 6, 6+, 7, 7+, 8, 8+
OPTIMIZED for iPad Pro 12.9 (1st, 2nd, 3rd gen), 11, 10.5, 9.7, Air, Air 2, Mini (2nd, 3rd, 4th)
iPad Split View supported.

***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 15 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

Version 3.6

- Privacy policy added - link in settings
- Support for iPhone X, XS, XS Max, XR, etc.
- Support for iPad Pro 12.9 (1st, 2nd, 3rd gen), 11, etc.
- iPad Split View support improvements
- Added inches of water under Pressure category
- Fixed fast search bug
- Cleanup and renaming of some currency codes

Ratings and Reviews

4.9 out of 5
5.7K Ratings

5.7K Ratings

Johnwkerseyjr ,

Outstanding Resource!

This app has been a blessing for my family and me for years. We've traveled in Europe and needed multiple currency, distance, temperature and weight conversions. In The States, I'm still using the app to convert volumes and lengths. I just found the time conversion tool that would have been a great help when calling friends and family at home. I've had no problems with functionality or navigation. With the frequent updates, this app is a keeper! Thanks!!

RedCardinal3 ,

Outstanding app!!

This UNITS PLUS app is fantastic! It is very easy to use for any kind of measuring when you need this type of information when on the internet and you need a quick,easy, and precise measurement! I love this app, I even put it on my iPad and use it all the time when I want to know a particular size of a crystal or stone I am ordering! It is always handy and I would not do without it!!!! I HIGHLY recommend this UNITS Plus app!!!!! JAY

SactoSal ,

Love this App

I wanted an all-purpose conversion app and Units Plus totally fits the bill. I've used it for currency, weights, temperature, measurements. It's easy and does not require internet access, which is critical to me when I travel. I love that I can look up a country's currency using the alphabet wheel, and do a reverse to convert dollars to other currency, or other currency to dollars. Highly recommend this app.


Alan Mrvica
6.9 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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