rationalcalc for android is now available in the android market.
rationalcalc is a unit-aware project calculator for calculating length with automatic unit conversions.
it is useful if you need to measure in and convert between imperial and metric units.
also, it is great for home projects as it features rounding up or down to common fractions, such as 1/4, 1/8 and 1/16.
visit rationalcalc.com for more info and qr codes to download the app