Android users, say goodbye to Skype and hello to Rebtel. Rebtel is an app that enables Android users to place international calls with other Android users absolutely free.

While a Wifi connection is required for Skype, Rebtel works with any phone, landline, feature phone or cellphone — anything with a dial pad, basically. Rebtel works by intercepting international calls, then automatically converting the international number into a local number via Rebtel’s VoIP network.

If most of your international friends don’t own an Android phone, the app still works. The call won’t be free, but you’ll save up to 90 percent off standard long-distance rates.

Click here for more information or to sign up for a free account with Rebtel.