Airtripp encourages users to connect with people from all around the world through photo sharing. The minimum age of use is 17+, the reason being (as disclosed by the App Store) there is a mild risk of sexual content, nudity, violence, drug use, mature/suggestive themes, gambling, and profanity. You don’t have to have an account to be able to view people’s profiles and images, heightening the risk of predators.