This app to smartphone SD card yourself is offline map app that you can use to put the map data.

Map data, created on Windows in Mobile Atlas Creator (Ver 1.8 or 1.9).

[When creating notes of Mobile Atlas Creator]
1) zoom level, please check all 0-19.
2) Atlas settings of the format, please choose the "Big Planet Tracks SQLite".
3) Other, please specify a default.
4) extension, please to .sqlitedb.
5) / sdcard Please put in the folder directly under. (Model there is a built-in memory is the internal memory side)
6) folder human location do not know of, please check the location by "Downloading the sample map".

※ This app is an experimental application that uses a library of OfflineMap-based-on-Osmdroid.