Uranium is described as 'lightweight collection of widgets (that also includes xui - https://github.com/xui/xui). They add UI functionality to a site. The widgets are mobile-optimized and are super-easy to use (you just need to add some CSS and attributes to your HTML)' and is an app in the Development category. There are five alternatives to Uranium for Online / Web-based, jQuery, Windows and Self-Hosted solutions. The best alternative is jQuery Mobile, which is both free and Open Source. Other great apps like Uranium are Mobile Angular UI (Free, Open Source), Auslogics BitReplica (Paid), Emy Library (Free, Open Source) and jQTouch (Free, Open Source).
A unified, HTML5-based user interface system for all popular mobile device platforms, built on the rock-solid jQuery and jQuery UI foundation. Its lightweight code is built with progressive enhancement, and has a flexible, easily themeable design.
BitReplica is a tool for backing up files stored on your Windows PC. It protects your photos, music, documents and any other data from being lost due to a hard drive crash, virus attack or accidental deletion.