The Man in Seat 61 (it.nikodroid.seat61) on Google Play
Download a copy of the train & ferry travel website www.seat61.com onto your smartphone or tablet and take it with you when you travel. You can browse all the pages of the site off-line without incurring expensive data roaming charges. To refresh your off-line files with a current version of seat61, simply download again when you're next on WiFi.