The Burner app is a mobile application that works on the concept of 'burners', or cheap cellphones that can be used and quickly discarded. The advantage of using these particular phones is that you can get in touch without sharing your permanent phone number with people that you don't trust. The Burner app brings that same functionality to the iOS and Android platforms.
The app essentially creates temporary numbers that you can hand out to people, who can contact you without knowing your main digits. The app will also be integrated with Dropbox, Soundcloud and Evernote.
Ultimately, the Burner app will allow customers to use mobile phones in new ways. There are a number of interesting applications. For example, Airbnb hosts could use it to share WiFi. This is definitely an app that can be applied to businesses -- particularly sharing economy ventures -- in interesting ways.
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Activity-Based Companion Apps
Minimalist Messaging Apps