Your Passenger Rights is another app that is super helpful - it lists the rules and your rights as a passenger when traveling by air, rail, maritime and road with EU companies/vendors. Don't be confused when your luggage is lost, your flight canceled or delayed or have problems traveling by bus. As long as the service provider is a EU company, you have the information in black and white.
Suzanne W. is a travel enthusiast and writes a blog - http://philatravelgirl.com/ - on her travels and her tips for budget travel and using points and other incentives to travel cheaply.
Apps for international travel
Return and Current Travelers Reviews of Apps used will traveling abroad. All you need to know about the apps and how the work (or don't) and how Travelers are using them!