The app built-in chat rooms, so as to help people expand their network, and then perhaps further find partners, guides, work exchange, BnB, hostel, or exchange with other travelers for the remaining foreign currencies, etc.

The Coin birds app is the first in the world to bring together travelers from all over the world on the same platform. Travelers can exchange foreign coins held by each other, and then the travelers can bring the foreign coins back to the country that issued the currency.

Coins of interest to investors often include those that circulated for only a brief time, coins with mint errors and especially beautiful or historically significant pieces.