AmigoCollect Android mobile application supports MBTiles files as a base-layers. This is another way of bringing large size map data to a mobile device that can be available offline.
Just copy an .mbtiles file(s) to the mobile device's external storage /amigobaselayers/ directory and restart the AmigoCloud application.
New base-layer will appear in the list of base-layers.
List of open source tools to generate MBTiles: