It has the Feasibility to add and integrate data of all shapes, and also we can use the client tools with Various data stores

BrightstarDB has a compatibility across various platforms be it linux, windows, ios, android which makes it very user friendly. It is an open source application which makes it super recommendable, the source code is available on Github for API integration. It uses RDF flexibility which helps in adding and integrating data of any shape. It also release timely updates for better performance.

One of the best DBs out there , that's easy to add and integrate data with their built in RDF data model and doesn't require a DB schema definition! Can be used to easily connect with other data stores using off the shelf client tools as it internally implements standard SPARQL query language. It uses simple yet powerful RDF graph data models to represent and store various data. Offers flexibility, scalability & easy integration with simple merging of data. Offers storage and representation of full historical data. Moreover , being an open-source , can be used with free of cost!