jQuery Mobile is described as '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' and is an app in the development category. There are more than 25 alternatives to jQuery Mobile for a variety of platforms, including Self-Hosted, Web-based, Windows, Android and Mac apps. The best jQuery Mobile alternative is Bootstrap, which is both free and Open Source. Other great apps like jQuery Mobile are Flutter, Tailwind CSS, Appcelerator Titanium and B4X.