Free offline maps possibly more detailed than googlemaps
Great interface for reading lengthy PDF travelbooks
Download the city and get offline access to reviews on tourist attractions, restaurants and hostels
Easy last minute booking of hostels
Great for couples looking for cheap private rooms
Google Translate App
Don’t forget to download the language pack of your choice that enables photographic translation, effectively deciphering menus and lengthy museum descriptions.
Half an hour every night before bed worked wonders for my spanish, and being asked the question “how long have you been learning Spanish?” was testimony, despite rolling my eyes at the numerous times I was made to translate el gato bebe leche.