Units - Pro Unit Converter

I like the layout because it shows all the conversions in one view and i can adjust which ones I want to see in the table. I would like to see more options, however; for example, “cubic feet per second” and “acre-feet” are common in hydrology in the US (good to add metric alternatives such as “cubic meters per second”).

I have been using the iPhone since the first model was released, and this app is one of the first I installed when the App Store opened to third party developers. I've consistently used it since then, and over the years it's become the only app I use for any conversions. Currency is great for travel and online shopping, and all the other conversions will come in handy at the most unexpected times. It's also useful to have the ruler for getting a rough idea of size. (I'm not good at visualizing 3", for example.) This app had some technical issues a while back, but they seem to be resolved. Despite this app not having an update since 2015, it still works great on my 6S+ running the most current OS. I hope the developer hasn't abandoned the app, because I've never found one that's so simple, comprehensive and affordable. I'm keeping my fingers crossed that they'll come back if needed. Until the app is definitely abandoned and no longer working, I highly recommend this app. It's been on the main screen of every single iPhone I've owned

Everyone who really likes the app and left one star because of technical issues that they more than likely were unaware of, are a bunch of crybabies! And the other crybabies whining about the ruler, come on now give me a break, get a ruler this is a converter app! The only person that has a valid complaint is of the climber and I hope they fix the issue for you other than that this is a pretty good app. I have been using it for years and it hasn't disappointed me yet. To be honest the ruler is kind of stupid. but maybe that's because I have measuring tapes in at least three of the rooms in my house

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I found myself using this app less and less often as it was easier to just use Google. But I have a frequent need to convert Fahrenheit to Celsius, and it looked like the Watch app was perfect for that. Unfortunately, you need to have the watch paired with your phone to do any conversion, even one that is a fixed formula that should never need a network request of any kind. Frustrating.

This is a very useful app with lots of conversion types included. I frequently use the the Computer Data & Computer Data Flow Rate sections. Thanks to the developer for quickly addressing the problems in the previous version!