ObStack is described as 'Open source tool allowing a user to fully dynamically configure data object types, and manage the objects and data as suited. Both object configuration and data can be fully by managed by a web interface or the API' and is an app in the development category. There are four alternatives to ObStack for a variety of platforms, including Windows, Linux, Web-based, BSD and Self-Hosted apps. The best ObStack alternative is i-doit, which is both free and Open Source. Other great apps like ObStack are Relinx, CMDBuild and DATAGERRY.