Which software can be developed using Ruby

Answer 1

Almost any kind really.
- Websites (Airbnb),
- Web apps (Basecamp),
- Simulators (Motorola & NASA),
- 3D modeling (Google SketchUp),
- Robotics (Morpha),
- Networking (Open Domain Server),
- Security (Metasploit Framework), and a lot more.

Answer 2

thanks Paola Mancia
I didn't know Ruby was like that