The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Efficient Co.,Ltd.:
Post office Navigation can search for the post office from the present place surrounding, the address,the station, and the map to the whole country. Detailed information on the post office (address, telephone number, and business hours) can be confirmed from the marker on the map. You can search from the marker sales in stores.FEATURES:- Map retrieval- A post office of the list the map display peripheral is retrieved.- Address retrieval (administrative divisions and municipal district town and village)- Station retrieval- You can search from the marker sales in stores.- Compass (rotation of map)* Japan Post Office Navigation requires an Internet connection.