NEW YORK (AP) — Facebook’s Internet.org project is taking another step toward its goal of bringing the Internet to people who are not yet online, launching an app Thursday in Zambia.

The Internet.org app will give subscribers of Zambia’s Airtel phone company access to a set of basic Internet services for free. Users of the app won’t incur the data charges that can be prohibitive for many people in developing nations. Facebook has already been working with mobile operators around the world to offer its own service free of charge to phone subscribers — think of it as a gateway to the rest of the Internet.