The database is about 14 MB and covers all the World. If you have a slow connection, it could
take a long time to synchronize between computer and mobile. In that case you can make a copy
of the QRouting.db file, and using this option you can make a smaller database of the area,
country or countries you fly more often in. You even can have several databases of different parts
of the world. Then in your mobile and in your computer you can select which database to use.