This month, the U.S. Customs and Border Protection unveiled its Mobile Passport Control app, which aims to speed up the cumbersome customs process.
U.S. and Canadian citizens create a profile with their passport information. For each trip, they just select their flight info, take a selfie and answer customs questions directly in the app. It produces a QR coded receipt to present to the customs officer.
This is a continuation of the Automated Passport Control self-service kiosks at many airports, which have cut down on wait times by as much as 40%.
Right now, the free app can only be used at the Atlanta airport, but other U.S. airports plan to accept the technology later this year, according to the CBP.