To make it even more easier, all items of each category can be enabled and disabled, just press the button with the gear icon and you will see the list of the selected category's units, all enabled units are red and disabled units are green. Currency exchange rates are updated every hour, so you will definitely be able to keep an eye on the latest changes. It makes Unit and Currency Converter the most practical and useful application! For Privacy Policy, please refer to https://unitconvertersite.wordpress.com/privacy-policy/