-changed behavior of clear button: if the input field has values, the clear button will clear that display. If the input field is empty, the clear button will clear the rest of the displays.-added ability to remove ads-added ability to purchase an expansion pack. Current expansion pack includes unit conversions for Power. There will be future additions to the expansion pack including customer requests for additions. Once you buy the expansion pack, all future additions are free.-minor improvements to the layout and text size.

~Andrew Swenson