Bump is an application created by Bump Technologies for the Apple's iOS and Google's Android operating systems. It allows two smartphone users to physically bump their phones together to transfer contact information, photos, and files to each other over the Internet. Bump also allows users to bump photos from a phone to a computer. It is the eighth most popular free app of all time and was the billionth download on Apple's App Store. Bump is free to download for both platforms. As of February 2013, there had been 125 million Bump app downloads.
Functionality
Bump sends contact information, photos and files to another device over the internet. Before activating the transfer, each user confirms what he or she wants to send to the other user. To initiate a transfer, two people physically bump their phones together. A screen appears on both users' smartphone displays, allowing them to confirm what they want to send to each other. When two users bump their phones, software on the phones send a variety of sensor data to an algorithm running on Bump servers, which includes the location of the phone, accelerometer readings, IP address, and other sensor readings. The algorithm figures out which two phones felt the same physical bump and then transfers the information between those phones. Bump makes transfers through software, while devices with Near Field Communication (NFC) chips transfer data through software and hardware.
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