Lucidchart was the original product of Lucid Software Inc. Here, you can add sticky notes, develop ideas through freehand drawing, and collaborate with your teammates. Lucidspark, on the other hand, works as a virtual whiteboard. Its main purpose is to allow teams to work on flowcharts, mindmaps, and ORG charts, and carry out other data visualization projects. Lucidchart is a collaboration-driven diagramming solution.
In fact, they’re two of the three main products offered by Lucid, the third one being Lucidscale. Lucidchart and Lucidspark are two separate tools created by the Lucid software brand.