Sencha Touch is Web Application builder.
Features of Sencha touch can be summaries as below:
# SAP(Single Page Application) development.
** Up to Sencha Touch 2.1.0 the applications were dependent in webkit browsers i.e. will run on chrome/safari.
From version (2.2.1) of sencha has removed the webkit dependency, now Sencha Touch applications support IE 10 for Windows Phone as well as Blackberry 10.
Latest Version 2.4.2 June 15, 2015.