Description
For scientists & engineers only.
While Units can do simple conversions like mm to inches, it can do much more. Units actually performs dimensional analysis, keeping track of what dimensions certain units are in. For instance, attempting to convert pounds (force) to kilograms (mass) will give you an answer in terms of acceleration, just as Sir Isaac Newton said it would. (Multiply kg by g to get a kilogram's force on Earth).
Unlike free online unit converters, Units lets you expand its default database of dimensions, physical constants and astronomical observations by adding the ones that are useful to you and modifying its existing units to meet your conventions. It's always available in your pocket, instead of pulling out your web-enabled mobile device to realize your lab walls blocks most wireless internet access.
Units also gives you symbolic keyboard support that the iPhone's built-in keyboard does not offer.
FEATURES:
• Dimensional analysis
• Database of most popular units, physical constants, astronomical observations
• Customize dimensions & units
• Extra symbolic keyboard
• Correct "offset" (temperature) support
What's New in Version 0.95
Units version 0.95 gains corrects support for temperature units in direct conversions among Kelvin, Fahrenheit, Celsius and Rankine. Support for values in the denominator is also added, improving accuracy for converting temperatures & angles. Mixing "offset" units, like Fahrenheit and Celsius, with other units may produce unexpected results. See website for details. The value for arcseconds has been corrected, if you reset the database, you may, of course, correct the value manually yourself.
Bug remaining: errors understanding x10 syntax.
iPhone Screenshots
Customer Reviews
A few minor issues, but fantastic otherwise
The database is excellent... Nothing else gets close. It's very similar to the unix program by the same name. I have one complaint - the plural form of units aren't recognized. Thus, 2 meters^3 ---> gallons doesn't work, but 2 meter^3 --> gallon does work. Confusing at first (the unix program handles this form just fine). Adding numbers and symbols through the iphone system keyboard is kinda annoying, but that's not the fault of the app (though i think there's enough room at the bottom of the app screen for dedicated # and math symbol input, with text getting added through the system keyboard through a "go to keyboard" key). Overall, a first rate app that's accurately described as ***For scientists and engineers only***!
Not Ready for Primetime, Even for Engineers
If you need a simple converter for English to metric units, this is NOT it. If you need an intuitive application that doesn't require you to move between screens and remember abbreviations, this is NOT it. If you are an engineer, surveyor, or normal person who needs an application to convert area measurements (acres, sq.ft., sq. yds, hectares, sq. meters, etc.) , this is NOT it. So who is this designed for? Damn if I know.
- $0.99
- Category: Reference
- Updated: Aug 12, 2008
- Version: 0.95
- Size: 0.3 MB
- Language: English
- Seller: Benjamin Spratling
- © 2008 Ben Spratling
Requirements: Compatible with iPhone, iPod touch, and iPad.Requires iOS 2.0 or later
