Uses a web service to provide information about an incoming caller based on their number. It works in certain European countries, the U.S., Canada and Australia: see the website for more information. The web service is also FOSS.
License: GNU General Public License v3.0
Source Code: https://gitorious.org/callerid-for-android/mainline
For full details and additional technical information, see this application's page on the F-Droid wiki.
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.Download F-Droid
Version 1.6 (7) - Added on Mar 7, 2013
This version requires Android 1.6 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.