Hello Hug, gives the best advice for travelers who wish to visit the USA, helping with passport regulations, tips at customs, to recommendations of what, where and how to get to the most interesting places while in the country including, hotels, motels, and dining.
Hello Hug also helps with money exchange, alerts, gives help for emergencies including locations of all foreign embassies. Aside from English the app is available in most foreign languages.

A Safe Trip Enrollment Program (STEP) is provided by Hello Hug for visitors to the USA, whereby their travel plans, remaining in privacy, are used in the event of an emergency or personal crisis as a life line between them and their home. This option, if desired, requires a .99 cent enrollment fee.