COLLADA Viewer is a free Android app developed by Googolplex ltd. that allows users to view 3D models on their mobile devices. The app supports importing files from the external storage, including COLLADA (.dae) and Google Earth (.kmz) file formats.

The app offers a simple and user-friendly interface that allows users to easily navigate and view their 3D models. It provides a smooth and seamless experience, with no lag or delay when loading and viewing models. The app also supports zooming and panning, allowing users to get a closer look at their models.

Overall, COLLADA Viewer is a great app for those who need to view 3D models on their mobile devices. Its support for popular file formats and easy-to-use interface make it a must-have tool for anyone in the utilities and tools category.