[darrenyaoyaoyao]

First, I pretty sorry that VisCircuit is unfriendly on mobile now. I currently focus on desktop web development and didn't spend too much time on mobile. For other feedbacks: 1. Timing diagram: It is a great advice! Thanks. Timing diagram is important for digital design. I wrote it down and plan to do in the future. 2. Data privacy: I totally agree, so I take data privacy at the first priority issue to make sure users data will be protected correctly. 3. I agree with you that the world needs a tool to draw circuits as easily as on a whiteboard. During my work, I always use PowerPoint to draw circuits, but it is not good enough. I will work hard to make VisCircuit an easy-to-use circuit diagram editor.

Thanks for your feedback! Welcome to try it at a computer.