We've just added the entire United States aircraft database to our existing database of Australian and New Zealand aircraft. That takes us to over 300,000 aircraft!
The reason for this big database is to make it easy for you to add an aircraft into your logbook. If the registration matches an aircraft we've loaded, most of the details are added for you automatically.
It is however quite easy to add/edit aircraft manually, incase your country hasn't been added yet, or if there is some missing information.
Unfortunately the UK database isn't available for download, so we won't be adding that anytime soon. If you want us to try and load your country let us know.