Sale has ended but you can still get this app.
Download SpectroPocket Basic Now

Official Description

SpectroPocket Basic for Android is the world’s first solution for measuring color with smartphones and tablet computers. The all new solution measures single color patches on different substrates using commercially available spectrophotometer and displays the recorded color values on any mobile Android device.

Hardware and Software
SpectroPocket Box (HW) for Android is a compact, portable, box-shaped device with integrated software and rechargeable USB battery which connects directly to the spectral measuring device via USB. Communication between SpectroPocket Box and the mobile Android device is transferred via Bluetooth technology.

Available display modes are spectral remission values as figures and curves, LAB, density, XYZ and RGB. Color differences between measurements are shown as Delta E. Perfect color densities derived from spectral measurements are calculated by the BestMatch function.
For further use on the web or in the Cloud, the entire series of measurements can be easily exported or imported as standard CxF (Color Exchange Format) format files, or transmitted to another Android device. Currently, SpectroPocket for Android supports various commonly used spectrophotometers.

Android is a registered trademark of Google, Inc. SpectroPocket is a registered trademark of Digital Information Ltd.