Comment by buiducnha

1. Export types:

- Export to Latex (Mostly for Math Mode, and does not guarantee compiled in complicated case)

- Tikz (for Diagram)

- MathMl (Math Mode only)

- SVG/PNG (Math Mode and Diagram only)

- Save as Html (.zip file)

- Save as PDF (currently supported on Desktop version), but you can use Browser Print and save as PDF

2. Sorry, I don't have clear Road map, mainly I'm working on to add more features specifically on Math (for example Z Specification)

3. Unfortunately there is no one-time payment license now.