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Developer: Web reservations Int.
Hostelworld is a service to book cheap accomodation. Hostels, camping sites, bed and breakfasts or budget hotels can be searched and booked. When I backpacked over several years I used Hostelworld to book a bed for the night on the fly, and peer reviews help you find the best rates and locations.
Name: Free Wi-Fi finder
A quick and easy way to find Wi-Fi hotspots, this app uses your phone's GPS system to hook into a database of free Internet spots.
The database is updated daily, and over 145,000 locations worldwide are currently stored.
The Skype app will have you making calls around the globe with no fuss, and without picking up the bill for high roaming charge.
It's a free app that uses a Wi-Fi connection to make calls to anyone with a Skype username that you are connected with. In a call, you can swipe from the video call to access instant messaging, or view their profile.
If you want to call or text a number outside of Skype, then you can join a subscription service to make cheaper international calls.
Be careful of using Skype on any pay-as-you-go Internet connection, as it does (naturally) hog a vast amount of bandwidth.