Here are three free apps that can help you translate all your cards into digital contacts:
CamCard: If you are worried about losing contacts, CamCard is a smart choice because it syncs all new contacts with the Cloud, so as you change devices you can get your contacts back. It also supports 12 languages. This app has both a free and a paid version and is available on Apple, Android and Blackberry.
Card Munch: This app is powered by LinkedIn, which is great because after you scan a business card, it finds the contact on LinkedIn so you can connect that way too. It's currently only available on iPhone, but an Android version shouldn't be far behind.
Yolu Card: If you have contacts in many countries, this multilingual app is your best bet. There's also a really cool mapping feature that allows you to see your contacts based on their location. It's available for Apple, Android and Windows phones.(Photo Credits: As listed above)