This webapp can be saved for offline use, to do so follow these steps:
Can I Drive aims to provide an accurate blood alcohol estimate, however without actual blood testing true blood alcohol levels cannot be determined. As such this service should be used as a rough guide and by using the service you acknowledge the risks involved, by using the service you forfeit rights to bring a suit against Can I Drive and associated personnel and developers.
If you would like to get involved in the project feel free to check it out on GitHub or email me. The following are planned potential improvements to the service: