Is internet necessary if the backend database is tinywebdb?

I am trying to set up a tinywebdb instance via Google App Engine for an App Inventor application. The said application will be accessed also in an offline environment. Will the google app engine hosted database still be working in such environment? If not, can the tinywebdb be imported to the local storage of the phone ? 



You can also build your database locally on the device with the TinyDB... You'd have to sync the two from time to time...