google earth images downloader is a tool that helps you to get offline satellite tile images from google earth (not google maps), including historical imagery. It can work without google earth installed.
After downloading, there are some ways to view the offline maps: you can view downloaded the offline map by Map Viewer, and you can zoom out or zoom in the offline map. Output the offline map as BMP, JPG, TIFF file. It can even export all tiles to an SQLite database with MBtiles format, then you use the SQLite DB on some Android or iOS apps, such as MapBox, RMaps, Oruxmaps, etc. When you created a mbtiles file, you can view the mbtiles file with MBTiles Viewer.