# Is the source code for all ODA Viewers available only in C++?

 1. [FAQ](/ja/faq)
2. »
3. [Vectorization and Visualization in Visualize](/faq/vectorization-and-visualization-visualize)

OdVisualizeFirstApp, OdVisualizeViewer, ODAViewer, OpenIFCViewer written on C++, WpfVisualizeViewer on C#, Android ODAViewer uses JAVA and C++ via JNI, IOSVisualizeViewer uses C++ with QML, iOS ODA Viewer uses Objective C and C++.