Fast STL Viewer

High-performance 3D viewer for binary and ASCII STL files on Android

Key features:

1. Support for viewing multiple STL files and models simultaneously

2. Convenient view modes: shaded, wireframe, shaded + wireframe, points

3. Front and back faces highlighted with different colors

4. Fast STL file and model loading

5. Support for large STL files and models (millions of triangles)

6. Support for both binary and ASCII STL formats

7. Mesh boundary and edge detection

8. Detection of separate (unconnected) meshes and parts

9. Model selection by long-pressing on a model

10. Deselect a model by long-pressing on the background

11. Display bounding box information for the selected model in the status bar

12. Invert normals of the selected STL model

13. Remove the selected STL model from the scene

14. Open STL files directly from email attachments and cloud services (Google Drive, Dropbox, OneDrive)

15. 3D printing integration with Treatstock

In-app purchases:

1. Scene color configuration: model (faces, wireframe, vertices) and background

2. Volume calculation (cm³) for a selected STL part

3. Surface area calculation for a selected STL part

4. Slice view mode to inspect the interior of STL models from different directions

5. Disable or remove all ads, including banner and interstitial ads