TdhGIS is described as 'Vector Based Spatial Analysis' and is an app in the Photos & Graphics category. There are more than 25 alternatives to TdhGIS for a variety of platforms, including Windows, Online / Web-based, Linux, Mac and Android. The best alternative is QGIS, which is both free and Open Source. Other great apps like TdhGIS are OpenLayers (Free, Open Source), PostGIS (Free, Open Source), GRASS GIS (Free, Open Source) and ArcGIS (Paid).
Global Mapper is a GIS Data processing application that offers access to a variety of spatial datasets and provides GIS functionality. Global Mapper is a must-have utility for anyone who deals with maps or spatial data.
Supergeo Technologies Inc. is global leading GIS software & total solution provider. With series GIS products covering from desktop, mobile, server to developer SDK, SuperGIS has been utilized more than 100 different countries.
Spatial Feature Server by MapET is an ESRI Geoservices REST Implementation and works with all ESRI Rest API's. The source of published data is the spatial extension of the major RDBMS, such Oracle, Microsoft SQLServer, MySQL, PostgreSQL.
Business mapping software (geographic information system) that delivers affordable, easy-to-use, professional mapping tools for mapping in these sectors: franchising, health care, business, territories, site selection, sales, marketing, banking, more.
Spotzi is an easy-to-use online GIS/data mapping platform for businesses/professionals you can try for FREE. With a short learning curve, people can immediately start with creating maps from data. Spotzi also has a datashop with readymade maps + data.