Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.

Postsnap - Postsnap's iPhone app is the best, free postcard creator. Make & send real printed postcards, greeting cards, invitations and announcement cards using your own photos.

Kiwi.com - Find and book the best low-cost flights all around the world

Fizzer - Send a personalised postcard with your photos. Holiday cards, thanks, greetings, invitations, birthdays and announcements.

App in the Air - The perfect companion for everyone taking a flight.

Stampix - Photo printing in a fast, easy & ecological way.