SWiTab is a mobile GIS viewer based on the Esri ArcGIS platform. - It shows area map in multiple layers, which can be turned on and off; - Documents of different format (PDF, Image, Text, etc.) are supported to be viewed geographically, i.e. associated with map locations or map objects of points / lines / polygons. - Documents and map layers are grouped in projects of a company. - Different user can have different accesses to different projects. - Documents can be searched with spatial search, line cross search or area search. - Measure tools are available for calculating distance and area. - On-screen locating tools are available for locating by a cords, legal description.- Project data of layers or reports are stored on a FTP server. - File changes can be detected and updated from local iPad.