This is FREE version of Units Plus Converter

SWAP units by pressing button on keypad (lower left)

OPTIMIZED for iPhone 11, 11 Pro, 11 Pro Max, 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, Air 3, Mini (2nd, 3rd, 4th, 5th)

OPTIMIZED for IPhone and iPad Retina display

***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 day.)
*Data-computer data (byte, kilobyte, megabyte, etc.)
*Time (days, weeks, hours, etc.)
*Volume (dry and wet)

Currency exchange rates are downloaded once a day when app is opened. 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 3.8

-Added App Privacy Requirements
-Screen Resolution support for iPhone 12 series

Ratings and Reviews

4.8 out of 5
115.3K Ratings

115.3K Ratings

KJ Decided ,

Allergies or Covid 19?

Seven months ago, after 29 years of living abroad, I retired and moved back to the United States. Oregon to be exact. I still have not unpacked all my household goods. But in digging through drawers that contain hastily unpacked items, I found three priceless objects that are unavailable at stores now during the first weeks of the Corona Virus outbreak.

These items were two unopened packages of a hand wipes that kill %99.9 of all bacteria, a thermometer, and bottle of hydrogen peroxide. Do now the peroxide is used to clean the thermometer. But the thermometer measures in Celsius. So is a temperature of 37 degrees C with head congestion and a cough an indication of something more than seasonal allergies or not? I don’t know yet, but I am so grateful that I still have my Units Plus app on my cell phone.

And I will continue to monitor, record and use the app Units Plus app to make informed decisions about my health. Thank you Units Plus.

Bertorama ,

It does EXACTLY what it says, and that’s AWESOME!

Like most people in the US, the metric system, to me, is a mystery. I used to work in international sales and can’t overstate how important it is to get an understanding of the metric system. This is especially true when taking custom-made product orders which require precise measurements of size, weight & length. International customers almost exclusively use and provide measurements in metric. This app makes those conversions from Imperial to Metric and vice versa, quickly and efficiently.

On another note, for culinary situations, I personally use metric. It’s much more precise, which is essential dealing with liquids and especially for baking. It is infinitely easier to convert baking recipes from cups, ounces and pounds entirely to metric units with this app. My baking results went through the roof once I started metric units. This app even does temperatures from Fahrenheit to Celsius.

I use this app every day, get it.

Mozartsmusic ,

Awesome App, I can’t thank you enough! 👍🤠

Since the very first iPhone came out on the very first day! I’ve been using the iPhone and one of the Apps I wanted was a App that converted all the many different Units, an App that didn’t require a PHD to use! I’m sure over the years I’ve tried hundreds of different ones! And I keep returning to this App! It’s easy enough that I have no problem using it! I have yet to try the “Pro” Version and may one day if for no other reason than to thank the people behind this App for their great work! Without any question this is a “Five Star App” !!!! 👍🤠👍🤗

App Privacy

The developer, Alan Mrvica, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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