The Lee Company has developed Lohm Calculator Apps for the iPhone, iPad and Blackberry devices.
The Lohm System is used for defining and measuring resistance to fluid flow. Just as the "ohm" defines electrical resistance, the "Lohm" or "liquid ohm" can be used as a measure of fluid resistance.
Visit the App Store to download the app to your iPhone or iPad. For Blackberry users, click here for download instructions.