2. Bump For Android, iOS
Bumping into a friend gets refined with Bump, a free Android and iOS app that uses Wi-Fi or another data connection to permit instant sharing of contacts, photos or other smartphone data by bumping mobile devices together. Contacts can include those from Facebook, Twitter and LinkedIn, which it also leverages to find mutual friends using Bump. Sharing occurs when two devices running Bump are detected by the app-maker's servers to bump at the same time and location. Files can cross platforms.
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