EZ-NP is coded to be run on a full size screen, and is not meant to be an app. Much of the ease of use comes from arranging things in clear menus, which small screens are not friendly to. Most of the data entry involves a lot of information, also not suitable for a small screen. Finally, EZ-NP is meant to run your organization. This should not be done by making decisions on the fly while you are in a line or conversing with your friends. We urge you to use a full-sized screen (and to think through your choices carefully).
To access the internet you use a browser. There are multitudes of browsers out there, and each differs a bit from the others. Commercial websites like those you see on Amazon, are built to accommodate as many browsers as possible, which means extra coding to account for all the differences. We made an executive decision to optimize EZ-NP for the Firefox browser, in order to save the extra coding (and avoid cluttering up the code with all those exceptions).
Firefox is available free for almost every computer and operating system. We recommend that you download it and use it access EZ-NP. Except for Internet Explorer, most other browsers will work pretty well, as their differences are small. However, Internet Explorer is an outlier, with substantial differences. EZ-NP will not work in this browser.