Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.
FreeCAD - An open-source parametric 3D modeler
FlutterFlow - FlutterFlow is an online low-code platform that empowers people to build native mobile apps visually.
Sculptris - Sculptris: Enter a world of digital art without barriers.