[brudgers]

Because 'Visa' is also the name of a major credit card provider, there are likely to be a significant number of people searching under that term whose needs are entirely different.

My standard concern is that it is much harder to iterate and communicate with users when the delivery channel is an app in an appstore versus a website. It is also more difficult to anchor pricing to a sustainable level and offer personalized service.

Expertise navigating international travel is something that may have more value than a potential customer's flagship mobile device. In an app store, it is going to be nearly impossible to extract that value because...well there's somebody who will offer a service that is similar for free or $1.99. In the app store, the $1.99 service will be largely indistinguishable from a $999 service due to the standard format of app store sales pages.